Explanation:

what is the value of variable x after the following statement is executed in JavaScript? Var x2-'3'+'4'; Correct Answer Undefined undefined is a property of the global object. That is, it is a variable in global scope. The initial value of undefined is the primitive value undefined. In modern browsers (JavaScript 1.8.5 / Firefox 4 + ), undefined is a non - configurable, non - writable property, per the ECMAScript 5 specification. (Even when this is not the case, avoid overriding it.) A variable that has not been assigned a value is of type undefined. A method or statement also returns undefined if the variable that is being evaluated does not have an assigned value. A function returns undefined if a value was not returned.

Explanation:

In Java , which operator is used to create an object Correct Answer class In Java, you create an object by creating an instance of a class or, in other words, instantiating a class. To create a new object, use Java's new operator. Here's an example using the new operator to create a Rectangle object (Rectangle is a class in the java. awt package).

Explanation:

Domain name to IP address mapping is done by_ Correct Answer DNS server Mapping a domain name to an IP Address is known as Name - Address Resolution. The Domain Name Server (DNS) Resolver performs this operation by consulting name servers. In order to find a particular DNS the requesting host place it's query to the Local DNS Server with a mapping request.

Explanation:

Distributed Queue Dual Bus is a standard for Correct Answer LAN & MAN Distributed - Queue Dual - Bus (DQDB) is a distributed multi - access network. provides access to Local Area Networks or Metropolitan Area Networks. supports connectionless data transfer, connection - oriented data transfer, and isochronous communications, such as voice communications.

Explanation:

which of the following will produce an answer that is closest in value to a double , d. while not being greater than d? Correct Answer (int)Math.Floor(d); Description The method floor gives the largest integer that is less than or equal to the argument. Syntax This method has the following variants − double floor(double d) double floor(float f) Parameters Here is the detail of parameters − A double or float primitive data type. Return Value This method returns the largest integer that is less than or equal to the argument. Returned as a double. Example Live Demo public class Test { public static void main(String args) { double d = - 100.675; float f = - 90; System.out.println(Math.floor(d)); System.out.println(Math.floor(f)); System.out.println(Math.ceil(d)); System.out.println(Math.ceil(f)); } } This will produce the following result − Output - 101.0 - 90.0 - 100.0 - 90.0

Explanation:

How many 'I's will be there in the binary representation of the following expression (assume 16 bit nubmber _ 12 + 64 + 128 + 256 + 1024 ) Correct Answer 6 In mathematics and digital electronics, a binary number is a number expressed in the base - 2 numeral system or binary numeral system, which uses only two symbols: typically “0” (zero) and “1” (one). The base - 2 numeral system is a positional notation with a radix of 2. Each digit is referred to as a bit.

Explanation:

It is not eas for a country with high fiscal deficits, high inflation, _____ banks and one that is __ to macro panics to completely open up its capital account . Correct Answer weak , prone Weak & prone both are adjective. In the question, "banks" is a Noun. Before it, adjective (weak) is appropriate according to meaning.

Explanation:

The ____ to e-buses would not lower the level of emissions but merely ___ their place of origin . Correct Answer transition, change The ____ to e - buses would not lower the level of emissions but merely ___ their place of origin. After 'the', Noun (transition) is used. After 'would', the present form of verb (change) is used.

Explanation:

The trade deficit has been growing rapidly, and the capital inflows __ to fund it could get disrupted in case US monetary policy gets tightened __ than expected. Correct Answer Needed , More The trade deficit has been growing rapidly, and the capital inflows __ to fund it could get disrupted in case US monetary policy gets tightened __ than expected. 'Needed' has been used as a participle. 'More' has been used as a comparative form.

Explanation:

"Assertive" people are generally more decisive . Correct Answer Confident assertive (adjective) having or showing a confident and forceful personality. "The job may call for assertive behaviour" Similar: confident, forceful, self - confident, positive, bold, decisive, assured.

Explanation:

People of "diverse " backgrounds now go to different places for pleasure, business or education. Correct Answer different diverse (adjective) showing a great deal of variety; very different. "A culturally diverse population" Similar: various, many and various, sundry, manifold, multiple, varied.

Explanation:

Computer has revolutionized offices procedures more than "any machine" of modern time Correct Answer any other machine বাক্যের Ajective (Superlative কে) যদি Comparative করতে হয় তবে any other বা all other ব্যবহার করে করতে হয়। সুতরাং বলা যায় Superlative এর অর্থ Comparative দ্বারা প্রকাশ করতে হলে Than এরপর Any other + Singular noun বা All other + plural noun বসাতে হয়।

Explanation:

কোন শব্দটির প্রয়োগ শুদ্ধ? সঠিক উত্তর উপলক্ষ্য উপলক্ষ্য - [বিশেষ্য পদ] প্রয়োজন, উদ্দেশ্য, অবলম্বন।

Explanation:

সমার্থক শব্দযোগে দ্বিরুক্তি হয়েছে কোনটিতে? সঠিক উত্তর ধন -দৌলত শব্দের দ্বিরুক্তি: ১. একই শব্দ অবিকৃতভাবে দুইবার ব্যবহৃত হয়ে দ্বিরুক্ত শব্দ গঠন করতে পারে। যেমন - ভাল ভাল বই, ফোঁটা ফোঁটা জল, বড় বড় বাড়ি, ইত্যাদি। ২. সহচর শব্দযোগে দ্বিরুক্ত শব্দ গঠিত হতে পারে। দুটি সম্পর্কিত শব্দকে সহচর শব্দ বলা যায়। যেমন, ‘কাপড় - চোপড়’ সহচর শব্দযোগে গঠিত দ্বিরুক্ত শব্দ। ‘কাপড়’ অর্থ গা ঢাকার জন্য যেসব পরা হয়। আর কাপড়ের সঙ্গে অনুষঙ্গ হিসেবে যেগুলো পরা হয় সেগুলোই ‘চোপড়’। অর্থাৎ, এই দুটি শব্দ পরস্পর সম্পর্কিত। তাই এই দুটি শব্দ সহচর শব্দ। এরকম - লালন - পালন, খোঁজ - খবর, ইত্যাদি। ৩. একই শব্দ দুইবার ব্যবহৃত হয়ে পরেরবার একটু পরিবর্তিত হয়ে দ্বিরুক্ত শব্দ হতে পারে। যেমন - মিট - মাট, ফিট - ফাট, বকা - ঝকা, তোড় - জোড়, গল্প - সল্প, রকম - সকম, ইত্যাদি। ৪. সমার্থক শব্দযোগে দ্বিরুক্ত শব্দ হতে পারে। যেমন - ধন - দৌলত, বলা - কওয়া, টাকা - পয়সা, ইত্যাদি। ৫. বিপরীতার্থক শব্দযোগেও দ্বিরুক্ত শব্দ গঠিত হতে পারে। যেমন - লেন - দেন, দেনা - পাওনা, ধনী - গরিব, আসা - যাওয়া, ইত্যাদি।

Explanation:

The supply of food and beverage for the program was abundant Correct Answer plentiful plentiful (adjective) existing in or yielding great quantities; abundant. "Coal is cheap and plentiful" Similar: abundant, copious, ample, profuse, rich, lavish, liberal.

Explanation:

'বিদিত' শব্দের বিপরীত শব্দ কী? সঠিক উত্তর অজ্ঞাত বিদিত শব্দের অর্থ পরিচিত; জ্ঞাত। সুতরাং বিদিত শব্দের বিপরীত শব্দ অজ্ঞাত।

Explanation:

কোন সন্ধিটি নিপাতনে সিদ্ধ? সঠিক উত্তর পর + পর = পরস্পর কতগুলো সন্ধি কোনো নিয়ম অনুসারে হয়না; এগুলোকে নিপাতনে সিদ্ধ সন্ধি বলে। কোনগুলো নিপাতনে সিদ্ধ সন্ধি তা জানার জন্য আমরা একটি কৌশল অবলম্বন করতে পারি। একাদশ বৃহস্পতি বারে তস্কর ও বনস্পতি পরস্পর গবাক্ষ চুরি করে আসছিলো, তখন ষোড়শী নায়িকা মনীষা ও তার অন্যান্য বান্ধবীদের সাথে দেখা হলো। নায়িকা আশ্চর্য হয়ে তার বান্ধবী পতঞ্জলিকে ডেকে বললো,”সখি এই কুলটারা কি কখনও নরকে যাবেনা“? উপরের বাক্যদ্বয়ে লাল কালি চিহ্নিত শব্দগুলো হচ্ছে নিপাতনে সিদ্ধ সন্ধি। এই সন্ধি গুলোর বিচ্ছেদ জেনে নেই। আ + চর্য = আশ্চর্য এক + দশ = একাদশ বৃহৎ + পতি = বৃহস্পতি তৎ + কর = তস্কর বন + পতি = বনস্পতি পর + পর = পরস্পর

Explanation:

বাংলা সাহিত্যে চলিত ভাষায় রচিত গ্রন্থ কোনটি? সঠিক উত্তর বীরবলের হালখাতা প্রমথ চৌধুরীর রচনাসমগ্র প্রবন্ধ গ্রন্থ তেল - নুন - লকড়ী (১৯০৬) বীরবলের হালখাতা (১৯১৬) নানাকথা (১৯১৯) আমাদের শিক্ষা (১৯২০) রায়তের কথা (১৯১৯) নানাচর্চা (১৯৩২) প্রবন্ধ সংগ্রহ(১৯৫২ ১ম খণ্ড ও ১৯৫৩ ২য় খণ্ড)[২] গল্পগ্রন্থ চার - ইয়ারী কথা (১৯১৬) আহুতি (১৯১৯) নীললোহিত (১৯৪১) "অনুকথা সপ্তক" "ঘোষালে ত্রিকথা"

Explanation:

কাঁদ + অন - কোন প্রত্যয়ের অন্তর্ভুক্ত ? সঠিক উত্তর কৃৎ প্রত্যয় কৃৎ প্রত্যয়→ ধাতু বা ক্রিয়া মূলের সাথে যে প্রত্যয় গঠিত হয় তাকে কৃৎ প্রত্যয় বলে । যেমনঃ - কাঁদন→√কাঁদ্‌ + অন, বাঁচন→√বাঁচ্ + অন, চলতি→√চল্‌ + তি. তদ্ধিত প্রত্যয়→ নাম বা সাধিত শব্দের শেষে যে প্রত্যয় যুক্ত হয়ে নতুন শব্দ গঠিত হয় তাকে তদ্ধিত প্রত্যয় বলে ।। যেমনঃ - থালা→থাল + আ, ডিঙা→ ডিঙি + আ, ঘামাচি→ঘাম + আচি.

Explanation:

Alam sold two vehicles for Tk. 46000 each . If he gained 10% on the first and lost 10% on another , then what is his percentage profit or loss in this transaction? Correct Answer 1% loss Let the profit be X% & loss be Y%. So, net profit/loss % = X + ( - Y) + X.( - Y)/100 (Negative sign denotes that there is a loss.) = 10 + ( - 10) + 10.( - 10)/100 = - 1 (Negative sign denotes that there is a net loss.) So, the net loss percentage is 1%.

Explanation:

A man can row 6 km / hr in still water. It the speed of the current is 2 km / hr , it takes 3 hrs more in upstream than in the downstream for the same distance . The distance is Correct Answer 24 km Speed of man in still water, x = 6 km/h Speed of current, y = 2 km/h Let distance = M According to question, Upstream time = Downstream time + 3 Or, M/4 = M/8 + 3 Or, 2M - M = 24 Or, M = 24 So, the distance is 24 km.

Explanation:

The respective ratio between the speed of a car , a train , and a bus is 5 : 9 : 4 . The average speed of the car, bus and train is 72 km / hr together . what is the average speed of the car and the train together? Correct Answer 84 km / hr Let the speeds of the car, train and bus be 5x, 9x and 4x km/hr respectively. Average speed = (5x + 9x + 4x)/3 = 18x /3 = 6x km/hr. Also, 6x = 72 = > x = 12 km/hr Therefore, the average speed of the car and train together is = ( 5x + 9x)/2 = 7x = 7 x 12 = 84 km/hr.

Explanation:

Three angles of a triangle are in proportion 5: 6: 7. Then what is the difference in degrees between he biggest and the smallest angles? Correct Answer 20° ATQ, 5x + 6x + 7x = 180 Or, 18x = 180 Or, x = 10 So, the difference in degrees between the biggest and the smallest angles = 70 - 50 = 20 degree.

Explanation:

A water tank has two taps ( Tap-1 and Tap-2) : Tap-1 can fill a tank in 8 hours and Tap-2 can empty the tank in 16 hours . How long will they take to fill the tank if both taps are opened simultaneously but Tap -2 is closed after 8 hours? Correct Answer 12 In 1 hr, the tank is filled = 1/8 - 1/16 = 1/16 In 8 hrs " " " " = 8/16 = 1/2 Now, 1/8 part is filled by tap - 1 in 1 hour 1/2 part is filled by tap - 1 in = 8/2 = 4 hrs So, the required time = 8 + 4 = 12 hrs

Explanation:

a motor -cycle covers 40 Km with a speed of 20 km /hr. Find the speed of the motor -cycle for the next 40 km journey so that the average speed of the whole journey will be 30 km / hr. Correct Answer 60.0km/hr Let the desired speed be x km/hr ATQ, 40/20 + 40/x = 80/30 Or, 1/20 + 1/x = 2/30 Or, 1/x = 1/15 - 1/20 Or, 1/x = (4 - 3)/60 Or, x = 60 So, the desired speed is 60 km/hr

Explanation:

12 marbles are selected at random form a large collection of white , red, green and yellow marbles . The number of marbles of each color is unlimited. Find the probability that the selection contains at least one marble of each color ? Correct Answer 3391 12 marbles are selected at random form a large collection of white , red, green and yellow marbles . The number of marbles of each color is unlimited. Find the probability that the selection contains at least one marble of each color ? This is same as W + R + G + Y = 12, where all are positive integers. Step I.. first, give one to each, hence 4 gone. Now you can distribute the remaining 8 to anyone as the restriction of at least one is done.. W + R + G + Y = 8..W + R + G + Y = 8.. Now, take this as 8 marbles and 3 partitions, so total 11 things. You can choose these 3 partitions in 11C3 ways = 11!/8!3! = 11∗10∗9/3∗2 = 11∗5∗3 Step II.. Total ways.. W + R + G + Y = 12 Now, take this as 12 marbles and 3 partitions, so total 15 things. You can choose these 3 partitions in 15C3 ways = 15!/12!3! = 15∗14∗13/3∗2 = 5∗7∗13 Probability = 11∗5∗3/5∗7∗13 = 33/91

Explanation:

A can finish a work in 5 days and B takes 4 days to do the same work . If the work is increased by 8 times, how many days will it take for both of them to finish the work if they work together? Correct Answer 20 days The work is increased by 8 times so the total work to be completed is [1 + 8 = 9] A completes 1/5 work in a day [ because he completes the work in 5 days] B completes 1/4 work in a day[ because he completes work in 4 days] So working together A&B completes 1/5 + 1/4 = 9/20 work in one day therefore the total increased work 9 will be completed in 20 days.

Explanation:

The average of the three numbers x , y and z is 45 , x is greater than the average of y and z by 9. The average of y and z is greater than y by 2 .Then the difference of x and z is: Correct Answer 7 According to the question, ⇒(x + y + z)/3 = 45 ⇒x + y + z = 135.....(i) ⇒x = (y + z)/2 + 9 ⇒2x−y−z = 18.....(ii) x + y + z = 135 2x−y−z = 18 −−−−−−−−−−−− 3x = 153 x = 51 From (i) y + z = 135 - 51 = 84.....(iii) Also, ⇒(y + z)/2 = y + 2 ⇒y + z = 2y + 4 ⇒z−y = 4 + y + z = 84 −y + z = 4 −−−−−−−−− 2z = 88 z = 44 Required difference = 51 - 44 = 7

Explanation:

which of the following city has recently topped the Global Livability Index 2018? Correct Answer Vienna Before being beaten by Vienna in 2018, Melbourne topped the "Global Liveability Index" list for seven years running.

Explanation:

Money market is a market for __ Correct Answer short -term fund The money market is the trade in short - term debt. It is a constant flow of cash between governments, corporations, banks, and financial institutions, borrowing and lending for a term as short as overnight and no longer than a year. The capital market encompasses the trade in both stocks and bonds.

Explanation:

where is 'Ground zero' ? Correct Answer New York Ground Zero is a 14.6 - acre area in Lower Manhattan in New York City. The site is bounded by Vesey Street to the north, the West Side Highway to the west, Liberty Street to the south, and Church Street to the east.

Explanation:

which of the following countries has successfully test -launched its first hyper sonic aircraft? Correct Answer China China (Aug 6, 2018) announced that it has successfully tested its first cutting - edge hypersonic aircraft which could carry nuclear warheads and penetrate any current generation anti - missile defence systems.

Explanation:

In absorption of insolation , the most significant part is played by. Correct Answer Ozone The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. It contains high concentration of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. The ozone layer contains less than 10 parts per million of ozone, while the average ozone concentration in Earth's atmosphere as a whole is about 0.3 parts per million. The ozone layer is mainly found in the lower portion of the stratosphere, from approximately 15 to 35 kilometers (9.3 to 21.7 mi) above Earth, although its thickness varies seasonally and geographically.

Explanation:

which of the following countries has recently launched the world's longest zip line meaning 2.83 km in length ? Correct Answer UAE The United Arab Emirates (UAE) has launched the world's longest zip Line “Jebel Jais Flight ” in Ras al - Khaimah. The 2.83km zip line allows thrill - seekers to jump from the peak off the UAE's highest mountain “Jebel Jais”.

Explanation:

The branch of science dealing with the study or collection of coins , banknotes, and medals is known as Correct Answer Numismatics Numismatics is the study or collection of currency, including coins, tokens, paper money and related objects. While numismatists are often characterised as students or collectors of coins, the discipline also includes the broader study of money and other payment media used to resolve debts and the exchange of goods.

Explanation:

A host machine is unable to communicate with Google server . Which command is the most appropriate to run at host machine to determine which intermediary device is responsible for this failure? Correct Answer ping 192. 168.1.1 Ping responses overview Basically, this means the router didn't give the PC an IP address. In this case, check the following: Check the IP address of your router by using the IPCONFIG command in the Command prompt.

Explanation:

'পূর্ব-পশ্চিম' উপন্যাসের রচয়িতা হলেন --- সঠিক উত্তর হুমায়ূন আহমেদ পূর্ব - পশ্চিম উপন্যাসের রচয়িতা হলেন সুনীল গঙ্গোপাধ্যায়

Explanation:

A man is in need of money for 120 days. He asked the banker and the banker charged Tk. 360 at the rate of 6%. What was the amount asked for? Correct Answer Tk. 16000 প্রশ্নে বলা হচ্ছে যে, একজন লোকের ১২০ দিনের জন্য কিছু টাকা প্রয়োজন । সে ব্যাংকের কাছে লোন চাইল । ব্যাংক তাকে ৬% হার ৩৬০ টাকা চার্জ করল । প্রশ্ন হলো সে ব্যাংক থেকে মোট কত টাকা নিয়েছিল ? আমরা জানি, I = prt/100 এখানে, I = সুদ/চার্জ = 360, r = সুদের হার = 6% , t = সময় = 120 days = 120/30 মাস = 4 মাস = 4/12 বছর = 1/3 বছর = > 360 = p×6×13100">p×6×13100p×6×13100 ∴ p = 18,000

Explanation:

Which is the minimum age requirement to be the Prime Minister of Bangladesh? Correct Answer 25 According to the Article 48 of Constitution of Bangladesh, a person shall not be qualified for election as president if they: are less than thirty - five years of age; or. have not qualified for election as a member of Parliament; or. have been removed from the office of President by impeachment under this Constitution.

Explanation:

এক কথায় প্রকাশ করুন : 'যিনি ইতিহাস জানেন' --- সঠিক উত্তর ইতিহাসবেত্তা ইতিহাস রচনা করেন যিনি - ঐতিহাসিক। ইতিহাস বিষয়ে অভিজ্ঞ যিনি - ইতিহাসবেত্তা। তাই সঠিক উত্তর - ঐতিহাসিক।

Explanation:

রবীন্দ্রনাথ ঠাকুরের জন্ম ---- সঠিক উত্তর ১৮৬১ খ্রি: ৭ই মে রবীন্দ্রনাথ ঠাকুরের জন্ম - - - - ১৮৬১ খ্রি: ৭ই মে। রবীন্দ্রনাথ ঠাকুর (৭ মে ১৮৬১ - ৭ আগস্ট ১৯৪১; ২৫ বৈশাখ ১২৬৮ - ২২ শ্রাবণ ১৩৪৮ বঙ্গাব্দ) ছিলেন অগ্রণী বাঙালি কবি, ঔপন্যাসিক, সংগীতস্রষ্টা, নাট্যকার, চিত্রকর, ছোটগল্পকার, প্রাবন্ধিক, অভিনেতা, কণ্ঠশিল্পী ও দার্শনিক। তাকে বাংলা ভাষার সর্বশ্রেষ্ঠ সাহিত্যিক মনে করা হয়। রবীন্দ্রনাথকে “গুরুদেব”, “কবিগুরু” ও “বিশ্বকবি” অভিধায় ভূষিত করা হয়।[

Explanation:

A : B = 4 : 5, A : C = 10 : 9 then A : B : = ? Correct Answer 20 : 25 : 18 A:B = 4:5 A:C = 10:9 A:B = (4 x 5) : (5 x 5) = 20:25 A:C = (10X2): (9X2) = 20:18 A:B:C = 20:25:18

Explanation:

'নীর' শব্দের সমার্থক শব্দ --- সঠিক উত্তর চন্দ্র 'নীর' শব্দের সমার্থক শব্দ - - - পানি। 'নীর' শব্দের আরো কিছু সমার্থক শব্দ - - - পানি, জল, বারি, সলিল, উদক, অম্বু, নীর, পয়ঃ, তোয়, অপ, জীবন, পানীয়।