Explanation:

PERENNIAL Correct Answer Perpetual Perennial শব্দের অর্থ হচ্ছে দীর্ঘকাল বা অনন্তকাল ধরে টিকে থাকা।Perpetual শব্দের অর্থ হচ্ছে কখনোই শেষ না হওয়া বা অপরিবর্তনীয় থাকা।

Explanation:

Who is the Prime Minister of Malaysia ? Correct Answer Najib Razak Mohhamad nazib bin razzak born 23 July 1953) is a Malaysian politician who served as the 6th prime minister of Malaysia from April 2009 to May 2018. He is the son of another former prime minister, Abdul Razak Hussein. Najib Razak was the chairman of the Barisan Nasional (BN) coalition from April 2009 to May 2018 and the president of the United Malays National Organisation (UMNO) from November 2008 to May 2018,which had maintained control of Malaysia's government with a parliamentary majority for more than sixty years until the coalition's defeat in the 2018 general election.

Explanation:

Where did the G20 leaders hold a meeting recently ? Correct Answer London The 2020 G20 Riyadh summit was the fifteenth meeting of Group of Twenty (G20). It was scheduled to take place in Riyadh, the capital city of Saudi Arabia, on 21–22 November 2020. However, due to the COVID - 19 pandemic, it was held virtually.

Explanation:

What type of band is the Exim Bank ? Correct Answer Commercial Export Import Bank of Bangladesh Limited (EXIM Bank) is one of the leading private commercial banks in Bangladesh. The Bank came into operation as a commercial bank on 3 August 1999 as per rules and regulations of Bangladesh Bank. From its establishment the bank was known as BEXIM Bank Limited. But due to legal constraints, the bank was renamed as EXIM Bank, which stood for Export Import Bank of Bangladesh Limited.

Explanation:

Which country is there between Russia and Canada ? Correct Answer USA As both countries claim sovereignty to the North Pole… the North Pole but if you want to put a dividing line between them, to the west we have USA (Alaska) and to the east, Greenland. No direct demarcation line between Canada and Russia. USA does share a line with them.

Explanation:

Which one is a renewable energy source ? Correct Answer Wind Renewable energy is useful energy that is collected from renewable resources, which are naturally replenished on a human timescale, including carbon neutral sources like sunlight, wind, rain, tides, waves, and geothermal heat. The term often also encompasses biomass as well, whose carbon neutral status is under debate. This type of energy source stands in contrast to fossil fuels, which are being used far more quickly than they are being replenished.

Explanation:

How many continents are there in the world ? Correct Answer 7 A continent is one of several large landmasses. Generally identified by convention rather than any strict criteria, up to seven regions are commonly regarded as continents. Ordered from largest in area to smallest, these seven regions are: Asia, Africa, North America, South America, Antarctica, Europe, and Australia. Variations with fewer continents may merge some of these, for example some systems include Eurasia or America as single continents.

Explanation:

Which cricket player of Bangladesh is sold $600,000 in Indian Premier League ? Correct Answer Mashrafe Mortaza Bangladesh pace spearhead Mashrafee Bin Mortaza has been dramatically sold for $ 600000 (nearly Tk 4.2 crore) in the Indian Premier League auction to Bollywood star Shahrukh Khan - owned Kolkata Knight Riders on Friday. The 25 - year - old allrounder became the first Bangladeshi cricketer sold from Pool F in the official Indian Twenty20 league. He will play under the captaincy of former Indian skipper Saurav Ganguly.

Explanation:

Which city has been devastated on 6th April 2009 by a deadly earthquake ? Correct Answer L'Aquila A magnitude 6.3 earthquake struck L'Aquila city and province in central Italy at 03:32 hours, Central European Time, on 6th April 2009. Some 308 people were killed at 19 different localities. In total, 1,500 people were injured, 202 of them seriously.

Explanation:

What percentage of numbers from 11 to 90 has 0 or 5 in the unit's digit? Correct Answer 20% Hints: 11 থেকে 90 পর্যন্ত মোট সংখ্যা 80 টি 0 বা 5 আছে এমন সংখ্য 16 টি শতকরা পরিমান = 16/80×100 = 20%

Explanation:

There are 4 women and 4 men sitting in a waiting room for job interview. If two of the applicants are selected at random, what is the probalility that both will be women? Correct Answer 3/14 মোট লোক সংখ্যা = (৪ + ৪) জন = ৮ জন ৪ জন হতে ১ জন মহিলা হওয়ার সম্ভাবনা = ৪/৮ = ১/২ বাকি ৩ জন মহিলা ও ৪ জন পুরুষ হতে ১ জন মহিলা হবার সম্ভাবনা = ৩/৭ দুইজন মহিলা হবার সম্ভাবনা = ১/২ × ৩/৭ = ৩/১৪

Explanation:

Which one of the following is the minimum value of the sum of two integers whose product is 36? Correct Answer 12 36 = 1×36 = 2×18 = 3×12 = 4×9 = 6×6 সংখ্যা দুটির যোগফল = 6 + 6 = 12

Explanation:

If the sum of three consecutive integers is less than 75, what is the greatest possible value of the smallest one? Correct Answer 23 ধরি, সংখ্যা তিনটি যথাক্রমে x - 1, x, x + 1 x - 1 + x + x + 1 <75 3x <75 x<75/3 x<25 যেহেতু x<25 এবং পূর্ণসংখ্যা সেহেতু x = 24 ছোট সংখ্যাটি = ( 24 - 1 ) = 23

Explanation:

A 12 gallon tub has a faucet that lets water in at a rate of 3 gallons per minute, and has a drain that lets water out at a rate of 1.5 gallons per minute. If you start with 3 gallons of water in the tub, how long will it take to fill the tub completely? Correct Answer 6 minutes Hints: tub টি ভরতে আরো পানি লাগবে (12 - 3) gallons = 9 gallons 1 মিনিটে পূর্ণ হয় ( 3 - 1.5) gallons = 1.5 gallos 1.5 gallons পূর্ণ হয় 1 মিনিটে 9 gallons পূর্ণ হয় 9/1.5 মিনিটে = 6 মিনিটে

Explanation:

Hamed is 7 years older than his brother Shaquib, who is twice as old their younger sister Lopa. if Lopa is 15 years younger than Hamed, then how old is Shaquib? Correct Answer 16 years Hints: ধরি, লোপার বয়স x বছর সাকিব এর বয়স 2x বছর হামিদের বয়স (2x + 7) বছর 2x + 7 - x = 15 x = 15 - 7 x = 8 সাকিব এর বয়স = ( 2×8) = 16 বছর

Explanation:

A man rowed 3 miles upstream in 90 minutes. If the river flowed with a current of 2 miles per hour, how long did the man's return trip take? Correct Answer 30 minutes ধরি নৌকা ও স্রোতের বেগ x ও y স্রোতের প্রতিকূলে 90 মিনিট বা 3/2 ঘন্টায় যায় 3 মইল স্রোতের প্রতিকূলে 1 ঘন্টায় যায় (3×2) / 3 মাইল = 2 মাইল x - y = 2 x - 2 = 2 [ y = 2] x = 4 স্রোতের প্রতিকূলে বেগ = x + y + 4 + 2 = 6 6 মাইল যায় 1 ঘন্টায় 3 মাইল যায় 3/6 ঘন্টায় = 1/2 ঘন্টায় = 30 মিনিট

Explanation:

If 4y-3x=5, what is the smallest integer value of x for which y>100? Correct Answer 132 4y - 3x = 5 4y = 5 + 3x y = 5 + 3x /4 শর্তমতে, (5 + 3x)/4 > 100 5 + 3x > 400 3x > 395/3 x > 131.67 যেহেতু x এর মান হবে ক্ষুদ্রতম পূর্ণসংখ্যা x = 132

Explanation:

Rakib can complete a task in 30 minutes, and together with his brother Momin, he can complete the task in 20 minutes. How long would it take for Momin working alone to complete the task? Correct Answer 60 minutes ব্যাখাঃ দুজনে একত্রে ২০ মিনিটে করে ১ অংশ দুজনে একত্রে ১ মিনিটে করে ১/২০ অংশ রাকিব একা ১ মিনিটে করে ১/৩০ অংশ রাকিব একা ১ মিনিটে করে = ( ১/২০ - ১/৩০) অংশ = ১/৬০ অংশ মোমিন ১/৬০ অংশ করে ১ মিনিটে মোমিন ১ অংশ করে( ৬০×১) = ৬০ মিনিটে

Explanation:

A fuel tank is 50% full. If 8 gallons of fuel is removed, then the tank remains 10% full. What is the capacity of the tank in gallons? Correct Answer 20 8 গ্যলন তোলার কারণে অবশিষ্ট থাকে 10% ট্যাঙ্কের 40% এ তেল হয় 8 গ্যালন " 50% " " " ( 50×8) /40 = 10 গ্যালন গ্যালনটির ধারণক্ষমতা ( 10 + 10) = 20 গ্যালন

Explanation:

What is the minimum number of tiles of size 16 by 24 required to from a square by placing the tiles adjacent to one another other? Correct Answer 16 টাইলসের ক্ষেত্রফল ( 16×24) টি = 384 টি 384 সংখ্যার চেয়ে বড় পূর্ণবর্গ সংখ্যা 400 বর্গক্ষেত্রের জন্য টাইলস লাগবে ( 400 - 384) টি = 16 টি।

Explanation:

In a class, 50% of the male students and 2/3 of the female students speak French. If there are 3/4 as many girls as boys, what fraction of the entire class specks French? Correct Answer 4/7 ধরি, বালকের সংখ্যা x বালিকার সংখ্য 3x/4 বালক - বালিকার মোট সংখ্যা ( x + 3x/4) জন = 7x/4 জন বালকদের মধ্যে ফ্রেঞ্চ ভাষায় কথা বলে x এর 50/100 জন = x/2 জন বালিকাদের মধ্যে ফ্রেঞ্চ ভাষায় কথা বলে 3x/4×2/3 = x/2 জন মোট ফ্রেঞ্চ ভাষায় কথা বলে ( x/2 + x/2) জন = x জন নির্ণেয় ভগ্নাংশ = x/7x/4 = 4/7

Explanation:

Recently, in which Asian country the Army has taken over the power in a military coup? Correct Answer Thailand Thailand, officially the Kingdom of Thailand and formerly known as Siam, is a country in Southeast Asia. Located at the centre of the Indochinese Peninsula, it is composed of 76 provinces spanning 513,120 square kilometres (198,120 sq mi), with a population of over 66 million people;Thailand is the world's 50th - largest country by land area and the 22nd - most - populous. The capital and largest city is Bangkok, a special administrative area.

Explanation:

In which district the Burimari Land Port is situated? Correct Answer Lalmonirhat Burimari land port is situated at Sreerampur Union in Patgram sub district. It is the 3rd largest land port of Bangladesh. In 1988 Burimari land port has been established at Burimari zero point for import and export goods with India, Bhutan and Nepal by road way. Using this land port Bangladesh import coal, wood, Timber, Stone, Cement,

Explanation:

Recently, the Padma Bridge work order has been awarded to a -----company. Correct Answer Chinese The Padma Multipurpose Bridge is a multipurpose road - rail bridge across the Padma River, the main distributary of Ganges, under construction in Bangladesh with its own resources. It connects Louhajong, Munshiganj to Shariatpur and Madaripur, linking the south - west of the country, to northern and eastern regions. Padma Multipurpose Bridge is considered to be the most challenging construction project in the history of Bangladesh.

Explanation:

Two trains are running on parallel lines in the same direction at a speed of 50 km/hr and 30 km/hr respectively. The faster train crosses a man sitting in the slower in 18 seconds. What is the length of the faster train? Correct Answer 100 m Hints: আপেক্ষিক বেগ ( 50 - 30) km/hr = 20 km/hr = 20000m/3600s 3600 সেকেন্ডে যায় 20000 মিটার 18 সেকেন্ডে যায় ( 20000×18)/3600 = 100 মিটার

Explanation:

Which one of the following is the highest waterfall in the world? Correct Answer Angel Falls The tallest waterfall in the world is Venezuela's Angel Falls, which plunges 3,212 feet (979 meters), according to the National Geographic Society. The falls descend over the edge of Auyán - Tepuí, which means Devil's Mountain, a flat - topped elevated area of land with sheer cliff sides located in Canaima National Park in the Bolivar State of Venezuela.

Explanation:

In Windows operating system, which of the following shortcut keys are used for printing a word document? Correct Answer Ctrl+P Ctrl + S → Save a document. Ctrl + P → Print a document. Ctrl + K → Insert a hyperlink. Alt + Left → Arrow Go back one page.

Explanation:

Bangladesh National Budget for Fiscal Year 2014-15 was proposed in the parliament on -----. Correct Answer June 05, 2014 Finance Minister Abul Maal Abdul Muhith has placed the proposed budget for fiscal 2014 - 15 5 june on Thursday. Hear is a brief overview of today's budget proposal: GDP target 7.3% The GDP target has been set at 7.3% for Fiscal Year 2014 - 15, the finance minister mentioned in his budget speech in the parliament on Thursday afternoon. In the last year's budget the GDP target was 7.2%.

Explanation:

Which one of the following devices is required to connect a computer to the internet? Correct Answer Modem কম্পিউটারে ইন্টারনেট সংযোগ স্থাপন করতে মডেম কিংবা ব্রডব্যান্ড সংযোগের প্রয়োজন হয়৷

Explanation:

The only foreigner to be awarded as "Bir Protik" is --- Correct Answer W.A.S. Ouderland মুক্তিযুদ্ধের চতুর্থ সর্বোচ্চ পদক বীর প্রতীক প্রাপ্ত মুক্তিযোদ্ধার সংখ্যা ৪২৬ জন এবং একমাত্র বিদেশী বীর প্রতীক ধারী ডব্লিউএএস ওয়াডারল্যান্ড।

Explanation:

Which one of the following is not an input device for computers? Correct Answer Printer In computing, a printer is a peripheral machine which makes a persistent representation of graphics or text, usually on paper. While most output is human - readable, bar code printers are an example of an expanded use for printers The different types of printers include 3D printer, inkjet printer, laser printer, thermal printer, etc.[

Explanation:

The Head Quarter of UNESCO is at --- Correct Answer Paris ৪ নভেম্বর ১৯৪৫ সালে প্রতিষ্ঠিত ইউনেস্কোর সদর দপ্তর - প্যারিস, ফ্রান্স।

Explanation:

The 18th SAARC summit will be held at ---- Correct Answer Kathmandu The eighteenth summit of 'South Asian Association of Regional Cooperation' (SAARC) was held in Kathmandu, the capital of Federal Democratic Republic of Nepal during 26–27 November 2014.

Explanation:

Which one of the following is used to display web content? Correct Answer Web browser A web browser (commonly referred to as a browser) is a software application for accessing the World Wide Web. When a user requests a web page from a particular website, the web browser retrieves the necessary content from a web server and then displays the page on the user's device.

Explanation:

Which one of the following devices is a must to run a computer? Correct Answer Processor In computing, a processor or processing unit is a digital circuit which performs operations on some external data source, usually memory or some other data stream. It typically takes the form of a microprocessor, which can be implemented on a single metal–oxide–semiconductor integrated circuit chip. The term is frequently used to refer to the central processing unit in a system.However, it can also refer to other co - processors.

Explanation:

If the product of two numbers is 10 and the sum of the two numbers is 7, then the larger of the two numbers is ---- Correct Answer 5 Let the number be a, b So, a + b = 7 b = ( 7 - a) and, ab = 10 a( 7 - a) = 10 a2 - 7a + 10 = 0 (a - 5) ( a + 2) = 0 a = 5, 2 So, the larger of the two number is 5

Explanation:

In a class of 50 students, 18 take music, 26 take art, and 2 take both art and music. How many students in the class are not enrolled in either music or art? Correct Answer 8 50 - 18 - 26 + 2 = 8, as 2 take both art and music , we need to add them, as they get subtracted twice while subtracting 18 and 26 from 50.

Explanation:

If b<2 and 2x-3d=0, which of the following must be true? Correct Answer x given, 2x - 3b = 0 3b = 2x b = 2x/3 but, b<2 2x/3 < 2 x < 3

Explanation:

Bridgeport is 924 miles from Danville. The distance between Danville to coopertown is three-fourths of the distance from Bridgeport to Danville. How many miles is it from Bridgeport to Coopertown? Correct Answer 1,617 Bridgeport to cooperatown = Bridgeport to Danville + Danville to Cooperstown = 924 + 3/4×924 = 1617

Explanation:

Nahid is ten years older than his sister. If Nahid was twenty five years of age in 2013, in what year could he have been born? Correct Answer 1988 2013 - 25 = 1988, there is no use of the information about his sister .

Explanation:

Aida divides a number greater than 100 by a number greater than 10. Which statement about Aida's quotient is always true? Correct Answer It is greater than 0 The two numbers can be anything, but not negative , . So the quotient is always greater than zero

Explanation:

If the following number pattern continues, what numbers will come next? 50, 30, 40, 20, 30 ----- Correct Answer 10, 20 According to the pattern, 50 - 20 = 30 30 + 10 = 40 40 - 20 = 20 20 + 10 = 30 30 - 20 = 10 10 + 10 = 20

Explanation:

A school committee consists of 2 teachers and 4 students. The number of different committees that can be formed 5 teachers and 10 students is : Correct Answer 2,100 5C2 × 10 C4 = 2100