Explanation:

Roshni was found(A)/of pets and she was a proud(B)/owner of many unique(C)/animals(D). Correct Answer found Fond of মানে প্রিয়। কিন্তু প্রশ্নে প্রদত্ত Found হবে না।

Explanation:

The first thing that catches your eye(A) in this building(B) is the flour(C)/with laser lights(D). Correct Answer flour flour বানান ভুল সঠিক floor হবে

Explanation:

'উদ্ধার' শব্দের সন্ধিবিচ্ছেদ কোনটি? সঠিক উত্তর উৎ + হার উৎছিন্ন = উৎ + ছিন্ন ঐন্দ্রজালিক = ইন্দ্রজাল + ইক অহর্নিশ = অহঃ + নিশ উল্লেখ = উৎ + লেখ অধমর্ণ = অধম + ঋণ উল্লাস = উৎ + লাস ওষ্ঠ্য = উষ্ + ঠ অপেক্ষা = অপ + ঈক্ষা উত্থান = উৎ + স্থান ওষধি = ওষ্ + ধ + ই উদ্ধার = উৎ + হার আরেক = আর + এক উদ্যোগ = উৎ + যোগ ঔষ্ঠ্য = ঔষ্ঠ্য + য আদ্যন্ত = আদি + অন্ত উদ্ধৃত = উৎ + হৃত ঔরস = উরস্ + অ

Explanation:

The average age of A,B,C,D and E is 40 years. The average age of A and B is 35 years and the average of C and D is 42 years. Age of E is - Correct Answer 46 A + B + C + D + E = 40 × 5 = 200 A + B = 35 × 2 = 70 C + D = 42 × 2 = 84 Therefore, E = (A + B + C + D + E) - (A + B + C + D) E = 200 - 70 - 84 E = 46 years

Explanation:

The sum of the digits of two -digit number is 10, while when the digits are reversed , the number decrease by 54. Find the changed number . Correct Answer 28 Let the original number is 82 i.e 8 + 2 = 10 and when the digits are reversed i.e 28 The difference is 82 - 28 = 54 i.e, the number is decreased by 54.

Explanation:

The selling price of an article after giving two successive discounts of 10% and 5% on the marked price is TK. 171 . What is the marked price ? Correct Answer Tk. 200 Equivalent Discount, = (A + B) - AB/100 = (10 + 5) - (10 × 5)/100 = 14.5% Let MP = X Now, X - 14.5% of X = 171(Selling Price) 0.855X = 171 X = 200 Hence, MP = Tk. 200 Going through options, 200(MP) = = 10%(disc.) ⇒ 180 = = 5%(disc.) ⇒ 171(CP)

Explanation:

A tank can be filled with water by two pipes A and B together in 36 minutes, the tank is filled in 40 minutes. The pipe B can alone fill the tank in - Correct Answer 90 munutes Let the pipes fill the tank in x minutes. Part of the tank filled by pipes A and B in one minute: 1/36 Part of the tank filled by pipe A in 1 minute = 1/36−1/x According to the question, 30 × (1/x) + (1/36−1/x) = 1 ⇒30x + 10/9−40/x = 1 ⇒10/x = 1/9 Hence, x = 90 minutes.

Explanation:

If A and B together can complete a work in 18 days, A and C together in 12 day and B and C together in 9 days, then B alone can do the work in - Correct Answer 24 days A + B)’s 1 day’s work = 1/18 (B + C)’s 1 day’s work = 1/9 (C + A)’s 1 day’s work = 1/12 On adding all above equations, we get 2 (A + B + C)’s 1 day’s work = 1/18 + 1/9 + 1/12 = {2 + 4 + 3}/{36} = {9}/{36} = {1}/{4} ∴ (A + B + C)’s 1 day’s work = {1}/{8} Now, B’s 1 day’s work = (A + B + C)’s 1 day’s work – (A + C)’s 1 day’s work = {1}/{8} - {1}/{12} = {3 - 2}/{24} = {1}/{24} Hence B alone can do the work in 24 days. So option [B] is correct answer.

Explanation:

In a 729 liters mixture of milk and water , the ratio of milk to water is 7:2 To get a new mixture containing milk and water in the ratio 7:3 the amount of water to be added is - Correct Answer 81 liters Quantity of milk in 729 litres of mixture = 7 × (729/9) = 567 litres, Quantity of water = 729 - 567 = 162 litres Let x litre of water be added to become ratio 7 : 3 Or, 7/3 = 567/(162 + x) Or, 162 × 7 + 7x = 567 × 3 Or, 7x = 1701 - 1134 = 567 Or, x = 567/7 = 81 litres water is to be added.

Explanation:

The sum of ages of 5 children born at the intervals of three years each is 50 years what is the age of the youngest child? Correct Answer 4 years Let ages of children are x, X + 3, X + 6, X + 9, X + 12 respectively. Now, X + X + 3 + X + 6 + X + 9 + X + 12 = 50 5X + 30 = 50 5X = 20 X = 4 Age of the youngest child is 4 years.

Explanation:

A and B invest in a business in the ratio 3:2 . If 5% of the total profit goes to charity and A's share is Tk. 855 the total profit is - Correct Answer Tk. 1500.00 Let the total profit be Tk. 100. After paying to charity, A's share = (95*3/5) = Tk. 57. If A's share is Tk. 57, total profit = Tk. 100. If A's share is Tk. 855, total profit = (100/57*855) = 1500.

Explanation:

The price of 10 chairs is equal to that of 4 tables . The price of 15 chairs and 2 tables together is Tk. 4000. The total price of 12 chairs and 3 tables is- Correct Answer None of these Assume the cost of Table and Chair is Tk. X and Tk. Y Write the Equation for the Question: •The price of 10 chairs is equal to that of 4 tables 10X = 4Y Y = 5x/2 •The price of 15 chairs and 2 tables together is Tk. 4000. 15X + 2*Y = 4000 15X + 2*5x/2 = 4000 20X = 4000 X = 200 •Substitute X value in Equation. So, Y = (5/2*200) Y = 500 •The total price of 12 chairs and 3 tables is, 12X + 3Y = 12*200 + 3*500 = 2400 + 1500 = 3900 The total price of 12 chairs and 3 tables is 3900 Taka.

Explanation:

Six years ago, the ratio of ages of Kunal and Sagars was 6 : 5. Four years hence, the ratio of their ages will be 11 : 10. what is Sagar's age at present ? Correct Answer 16 years Let the ages of Kunal and Sugar 6 years ago be 6x and 5x years respectively. Then, {(6x + 6) + 4}/{(5x + 6) + 4} = 11/10 ⇒10(6x + 10) = 11(5x + 10) ⇒5x = 10 ⇒x = 1 ∴ Sagar's present age = (5x + 6) = 16 years.

Explanation:

A pump can fill a tank with water in 2 hours . Because of a leak , it took 213 hours to fill the tank.The leak can drain all the water of the tank in - Correct Answer 14 hours Work done by the leak in 1 hour = 1/2−3/7 = 1/14 ∴ The leak will empty the tank in 14 hours

Explanation:

If m and n are whole numbers such that mn=121, the value of (m-1)n+1 is Correct Answer 1000 We know that (11)^2 = 121. Putting m = 11 and n = 2, we get: (m - 1)^(n + 1 ) = (11 - 1)^(2 + 1) = (10)^3 = 1000

Explanation:

The difference between simple and compound interest on a sum of money at 20% per annum for 3 years is Tk. 48. What is the sum ? Correct Answer Tk. 375 Let principal amount be Tk.100. Then, S.I. = (100 × 20 × 3)/100 = Tk.60 and C.I. = 100 (1 + 20/100)^3−100 = 100 × (6/5)^3−100 = 364/5 ∴ C.I. - S.I. = 364/5−60 = 64/5 If the difference is Tk.64/5, Principal = Tk.100 If difference is Tk.48 Principal = (100 × 5/64) × 48 = Tk.375

Explanation:

A bag contains an equal number of one rupee , 50 paisa and 25 paisa coins . If the total value is TK. 35 , how many coins of each type are there? Correct Answer 20 Let X coins of each type of there Total Value = Tk. 35 Now, X + X/2 + X/4 = 35 4X + 2X + X = 140 7X = 140 X = 20

Explanation:

Two trains of equal length , running in opposite directions, pass a pole in 18 and 12 seconds. The trains will cross each other in - Correct Answer 14.4 seconds Let the length of each train be x meter. Then, speed of 1st train = x/18 m/sec Speed of 2nd train = x/12 m/sec Now, When both trains cross each other, time taken = 2x/(x/18 + x/12) = 2x/{(2x + 3x)/36} = (2x × 36)/5x = 72/5 = 14.4seconds

Explanation:

A boat can travel with a speed of 13 km/hr in still water . If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream . Correct Answer 4 hours Speed downstream = (13 + 4) km/hr = 17 km/hr Time taken to travel 68 km downstream = 68/17 hours = 4 hours

Explanation:

The ratio between the perimeter and the breadth of a rectangle is 5 :1 . If the area of the rectangle is 216 cm2. what is the lenth of the rectangle? Correct Answer 18 cm 2(l + b)/b = 5/1 = > 2l + 2b = 5b = > 3b = 2l = >b = (2/3)l Then, Area = 216 cm^2 = > l x b = 216 = > l x (2/3)l = 216 = >l = 18 cm.

Explanation:

A bag contains 4 white , 5 red and 6 blue balls. Three balls are drawn at rand dom from the bag .The probability that all of them are red.is : Correct Answer 291 Let S be the sample space Then, n(S) = number of ways of drawing 3 balls out of 15 = 15C3 = (15 × 14 × 13)/(3 × 2 × 1) = 455 Let E = event of getting all the 3 red balls ∴n(E) = 5C3 = 5C2 = (5 × 4)/(2 × 1) = 10 ∴P(E) = n(E)/n(S) = 10/455 = 291

Explanation:

The ozone layer restricts- Correct Answer Ultraviolet sradiation The ozone layer restricts ultraviolet radiation. The Ozone layer which is present in the Earth's atmosphere protects it by restricting from UV or Ultraviolet radiation, the dangerous rays contained by Sun.

Explanation:

Headquarters of UNO are situated at Correct Answer New York , USA The headquarters of the United Nations is a complex in New York City. The complex has served as the official headquarters of the United Nations since its completion in 1952. It is located in the Turtle Bay neighbourhood of Manhattan, on spacious grounds overlooking the East River.

Explanation:

The first meeting of the UN General Assembly was held in which of the following city ? Correct Answer London The first session of the UN General Assembly was convened on 10 January 1946 in the Methodist Central Hall in London and included representatives of 51 nations. The next few annual sessions were held in different cities: the second session in New York City, and the third in Paris.

Explanation:

The energy of food is measured in - Correct Answer calories A calorie is a unit that is used to measure energy. The Calorie you see on a food package is actually a kilocalorie or 1,000 calories. A Calorie (kcal) is the amount of energy needed to raise the temperature of 1 kilogram of water 1 degree Celsius.

Explanation:

Wright brothers are regarded in ventors of the Correct Answer Aero Plane Wright Brothers are regarded inventors of the Aeroplane. The Wright brothers Orville (August 19, 1871 – January 30, 1948) and Wilbur (April 16, 1867 – May 30, 1912) – were two American aviation pioneers generally credited with inventing, building, and flying the world's first successful airplane.

Explanation:

The main object of which of the following. UN agency is to help the underdeveloped countries in the task of raising their living standards ? Correct Answer IDA IMF - International Monetary Fund UNICEF - United Nations International Children's Emergency Fund UNDP - United Nations Development Programme IDA - International Development Association

Explanation:

STALEMATE Correct Answer Deadlock Stalemate - অচলাবস্থা, Degeneration - অধঃপতন, Deadlock - অচলাবস্থা, Exhaustion - অবসাদ, ক্ষয়, Settlement - নিস্পত্তি। সুতরাং Stalemate - এর সমার্থক শব্দগুচ্ছ - Deadlock, Impasse, Standstill.

Explanation:

PERPETUAL Correct Answer Never ending Perpetual - চিরস্থায়ী, Never ending - অনন্ত, Perfect - নিখুঁত, Confused - বিভ্রান্ত, Seasonal - মৌসুমি। সুতরাং Perpetual এর Synonym হচ্ছে - Never ending, Everlasting, Eternal.

Explanation:

ZEALOUS Correct Answer Ardent Zealous - প্রবল উদ্দীপনাপূর্ণ, Ardent - অত্যুৎসাহী, Jealous - ঈর্ষান্বিত, Impatient - অসহিষ্ণু। অতএব Zealous এর প্রতিশব্দ - Ardent, Inclined, Quivering.

Explanation:

UNBEARABLE Correct Answer Unpleasant Unbearable - অসহনীয়, Tolerable - সহনীয়, Acceptable - গ্রহণযােগ্য, Undefeated - অপরাজিত, Unpleasant - অসন্তোষজনক। অতএব Unbearable এর সমার্থক শব্দগুচ্ছ - unpleasant, Exquisite, Flagrant.

Explanation:

Find the correctly splet word. Correct Answer Ominous Correct spelling হচ্ছে Ominous. Ominous যার অর্থ অশুভ।

Explanation:

Canal are (A) artificial waterways, often constructed (B) either to transport heavy loads or to (C) delivering water (D) to cities and farms . Correct Answer throughout সাধারণত (to + verb) এর ক্ষেত্রে verb এর base form ব্যবহৃত হয়। তাছাড়া (B) অংশের to transport এর সাথে সামঞ্জস্য রেখে to deliver হবে।

Explanation:

Hygrometer is used to measure - Correct Answer relative humidity Hygrometer, instrument used in meteorological science to measure the humidity, or amount of water vapour in the air. Several major types of hygrometers are used to measure humidity.

Explanation:

(A) The pineapple, a fruit (B) grow in tropical climates (C) throughout the word , (D) is native to parts of South America. Correct Answer grow প্রদত্ত বাক্যের (B) অপশনের মূল verb Grow এর সাথে ‘s' যুক্ত হবে। কারণ, pineapple কে নির্দিষ্ট ফল হিসেবে প্রকাশ করা হয়েছে।

Explanation:

A large (A) number of automobile (B) part are now (C) made of plastic (D) instead of steel. Correct Answer part প্রদত্ত বাক্যে A large number দ্বারা বৃহৎ অংশকে বুঝানাে হয়েছে। তাই (B) অপশনে part - এর স্থলে parts হবে।

Explanation:

Although a Kangaroo (A) normally uses (B) its large feet and strong legs (C) for hopping , (D) but it can also swim. Correct Answer bu it can প্রদত্ত Sentence এর (D) অপশনে but দ্বারা পরবর্তী বাক্যাংশে নেতিবাচক প্রতিক্রিয়া বুঝানাে হয়েছে কিন্তু তা সঠিক নয় ।

Explanation:

Many modern medicine are derived ---- plants and animals . Correct Answer from যখন কোনাে কিছু থেকে কিছু পাওয়া যায় তখন Derived from (পাওয়া) ব্যবহৃত হয়। এখানে Plants এবং Animals থেকে আধুনিক ওষুধ পাওয়ার কথা বলা হয়েছে।

Explanation:

AIDS is not disease that can be ---- through the air or by insects . Correct Answer transmitted কোনাে ব্যক্তির থেকে অন্য কোন ব্যক্তিতে (Internally) কিছু চলে যাওয়া বুঝাতে Transmit শব্দটি ব্যবহৃত হয়। অনেক রােগ আছে যা ব্যক্তি থেকে ব্যক্তিতে ছড়িয়ে পড়ে।

Explanation:

I shall ring you up as soon as - Correct Answer I arrive একটি বাক্যে একাধিক Tense ব্যবহৃত হলে তাদের মধ্যে ধারাবাহিকতা বজায় রাখতে হয়। As soon as সাধারণত অতীত কালের জন্য ব্যবহৃত হয়। তবে Sentence - এ Tense অনুসারে এর ব্যবহার লক্ষণীয়। যেমন: I shall ring you up as soon as I arrive. I opened the door as soon as I heard the bell.