Explanation:

India House is located in- Correct Answer London India House is located in London. ইন্ডিয়া হাউজ হলো লন্ডনে অবস্থিত ভারতীয় দূতাবাসের নাম। এটি বুশ হাউজ এবং অস্ট্রেলিয় হাই কমিশনের মাঝামাঝি স্থানে অবস্থিত একটি বিল্ডিং, যেখানে ভারতীয় হাই কমিশনারের কার্যালয় রয়েছে।

Explanation:

The primary job of operating system of a computer is to - Correct Answer Manage resources The primary job of the operating system of a computer is to manage resources.

Explanation:

What least number must be added to 1056, So that the sum is completely divisible by 23? Correct Answer 2 23 ÷ 1056 এর ভাগফল = 45 এবং, ভাগশেষ = 21 Now, 23 - 21 = 2 So, the number is 2

Explanation:

If (a-b) is 6 more than (c+d) and (a+b) is 3 less than (c-d) ,Than ( a-c) is - Correct Answer 1.5 a + b = c + d + 6 a + b = c - d - 3 ( + ) = 2a = 2c + 3 2a - 2c = 3 2 ( a - c) = 3 a - c = 3/2 = 1.5

Explanation:

The least number by which 1470 must be divided to get a number which is a perfect square is- Correct Answer 5 1470 এর গ, সা, গু 1470 = 2×5×3×7×7 So, the least number is = 2×5×3 = 30

Explanation:

In how many ways can the letters of the word "APPLE'' be arranged? Correct Answer 60 APPLE এ মোট অক্ষষ 5 টি = 5! P আছে 2 টি = 2! APPLE = 5!/ 2! = 120/2 = 60

Explanation:

A sells an article which cost him TK.400 to B at a profit of 20%.B then sells it to C, making a profit 10% on the price he paid to A. How much does C pay B? Correct Answer Tk528 Sells price of A = Cost price of B Sells price of B = cost price of c For, A when Cost price 100 then sells price 120 tk when cost price 1 then sells price 120/100 tk when cost price 400 then sells price = (120×400)/100 = 480Tk. For, B when cost price 100 then sells price 110 Tk. when cost price 480 then sells price = ( 110×480)/100 = 528Tk. So, C will pay B Tk. 528

Explanation:

The ratios of incomes of A and B is 5:4 and the ratio of their expenditures is 3:2. If at the end of the year each save tk 1600,then the income of A is: Correct Answer Tk 4000 Let, income of A and B are respectively 5x and 4x Tk. and expenditures of A and B are respectively 3y and 2y Tk. According to question, 5x - 3y = 1600.......(1) 4x - 2y = 1600........(2) (1) × 4 - (2)×5 20x - 12y = 6400 20x - 10y = 8000 - 2y = - 1600 y = 800 Now, 4x - 2×800 = 1600 4x = 1600 + 1600 x = 800 So, income of A is = 5 × 800 = 4, 000 Tk.

Explanation:

Sixty-five percent of a number is 21 less than; four-fifth of that number.What is the number? Correct Answer 140 Let, the number is x 65% of x is = 65x/100 = 13x/20 According to question, 13x/20 = 4x /5 - 21 4x/5 - 13x/20 = 21 (16x - 13x)/20 = 21 3x = 320 x = 140

Explanation:

A started a business with tk 21000 and is joined afterwards by B with tk 36000. After how many months did B join if the profits at the end of the year are divided equally? Correct Answer 5 As their profit is equal at the end of the year, their time ratio is equal to their capital ratio oppositly. Their capital ratio is = 21000 : 36000 = 21 : 36 = 7 : 12 So, their time ratio is equal to 12 : 7 A has contributed for 12 month and B contributed for 7 months So, B has joined after 12 - 7 = 5 months

Explanation:

If 12 carpenters, working 6 hours a day,can make 460 chairs in 24 days, how many chairs will 18 carpenters make in 36days, each working 8 hours a day? Correct Answer 1380 Total work time for 12 carpenters is = 12×6×24 hours = 72×24 hours Total work time for 18 chapter is = 18×8×36 hours = 144×36 hours In 72×24 hours they can make 460 chairs In 144×36 hours they can make ( 460×144×36)/(72×24) = 1380 chairs

Explanation:

A tap can fill a tank in 6hours.After half hour the tank filled ,three more similar taps are opened.What is the total time taken to fill the tank completely? Correct Answer 4hrs A tap in 6 hours can fill 1 portion A tap in 1 hours can fill 1/6 portion By 1st 1/2 portion is filled by 3 hours The left 1/2 portion is filled by 3 same tap Now, By 1 tap 1/6 portion is filled in 1 hours By. 3 tap 3/6 portion is filled in 1 hours or 1/2 portion is filled in 1 hours So, total required time is = (3 + 1) hours = 4 hours

Explanation:

A man walking at the rate of 5 km/hr crosses a bridge in 15 minutes. The length of the bridge (in meters) is- Correct Answer 1250 Rate for walking per minute = (5×1000)/60 meter = 250/3 meter In 1 minute he crosses 250/3 meter In 15 minute he crosses 250/3 meter 15 minute he crosses = (250×15)/3 = 1250 meter So, the length of the bridge is 1250 meter

Explanation:

Tea worth tk. 126 per kg and Tk.135 per kg are mixed with a third variety in the ratio 1:1:2. If the mixture is worth tTk.153 per kg,The price of third variety per kg will be: Correct Answer 175.50 Let, the amount of tea is gradually 1 kg, 1kg and 2kg. price of third variety is x taka per kg According to question . ( 126 + 135 + 2x)/4 = 153 261 + 2x = 612 2x = 612 - 261 2x = 351 x = 175.50

Explanation:

In how many years, Tk. 150 will produce the same interest @8% Tk.800 produce in years @4.5% ? Correct Answer 9 In second stage, 100 taka in 1 year gains 41/2 or 9/2 taka 1 taka in 1 year gains 9 /(2×100) taka 800 taka in 3 year gains = ( 9×3×800)/200 = 108 tk In first stage, 100 taka gains 8 taka 1 taka gains 8/100 taka 150 taka gains (8×150)/100 taka = 12 taka Now, 12 tk is gained in 1 year 108 tk is gained in = 108/12 = 9 years

Explanation:

A and B can do a work in 12days,B and C in 15days,C and A in 20days.If A,B and C work together ,They will complete the work in: Correct Answer 10Days (A + B) can do in 1 day = 1/12 th of the work (B + C) can do in 1 day = 1/15 th of the work (C + A) can do in 1 day = 1/20 th of the work So, In 1 day 2 (A + B + C) can do ( 1/12 + 1/15 + 1/20) portion = ( 5 + 4 + 3)/60 portion = 12/60 portion = 1/5 portion In 1 day( A + B + C) can do = 1/(5×2) portion = 1/10 portion (A + B + C) can do 1/10 portion in 1 day " " " 1 " " = 1×10 day = 10 days

Explanation:

A train takes 18 sec to pass completely through a station 162m long and 15 seconds through another station 120m long.The length of the train- Correct Answer 90m Train length + 162m pass in 18 seconds Train length + 120m pass in 15 seconds ( - ) So, 42 m passes in 3 seconds In 3 seconds it passes 42 m In 1 seconds it passes = 42/3 m = 14m Now, in 15 seconds it passes = ( 14×15) m = 210m Train length + 120m = 210m Train length = ( 210 - 120)m = 90m

Explanation:

The compound interest on Tk 30,000 at 7% per annum is TK.4357. The period (in years) is: Correct Answer 2 We know, C = P ( 1 + r)n So, 34347 = 30, 000 ( 1 + 7/10)n 34347/30000 = (107/100)n 1.14 = ( 1.07)n n = 2

Explanation:

A rectangular plot measuring 90 meters by 50 meters is to be enclosed by wire fencing.If the poles of the fence are kept 5meteres apart,how many poles will be needed? Correct Answer 56 Perimeter of the rectangle is 2 ( 50 + 90) meter = 280 meter Between 5 metre the required number of poles is = 280/5 = 56

Explanation:

If a boat goes 7km upstream in 42 minutes and the speed of the stream is 3kmph,then the speed of the boat in still water is- Correct Answer 13km/hr Let, the speed of the boat in still water is x km/hr the speed of stream in 3 km/hr So, Upstrem speed of boat is ( x - 3) km/hr According to question, Upstrem speed of boat is = 7/42 km/mint = (7×60)/42 km/hours = 10km/hours So, x - 3 = 10 x = 10 + 3 = 13 km/hr

Explanation:

On 8th feb,2005 it was tuesday. What was I the day of the week on 8Th feb,2004? Correct Answer Sunday 1 year = 365 days = 52 weeks + 1 day In every next year one day is added with weeks, .Again, in every previous year one day is deducted from weeks. Here, 2004 is a leap year which has 366 days. so, 2 days will dedicated from Tuesday of 2005. So, the day is Sunday

Explanation:

At what time between 7 and 8 O'clock will the hands of a clock will be in the same straight line but not together? Correct Answer 5.45min past 7 Angle = | 11M - 60H/2 |0 So, 1800 = (60×7) - 11M/2 360 = 420 - 11M 11M = 60 M = 60/11 M = 5 5/11

Explanation:

A can run 22.5m while B runs 25m. In kilometre race B beats A by- Correct Answer 100m B run 25.0m A runs 22.5 m So, B beats A by ( 25.0 - 22.5) m = 2.5m 1km = 1000 m In 25 m B beats A by 2.5m In 1 m B beats A by = 2.5/25 m 1000 B beats A by = ( 2.5 ×1000)/25 m = 100m

Explanation:

A 6% stock yeilds 8%. The market value of the stock is : Correct Answer Tk 133.33 Let, Primary stock value is 100 Tk. Now, 6 Tk stock yield 8Tk. 100 Tk stock yield = ( 8×100)/6 = 133.33Tk.

Explanation:

The average of a non-zero number and its square is 5times the number. The number is- Correct Answer 29 Let, the number is x So, (x + x2) /2 = 5x x + x2 = 10x x2 - 10x + x = 0 x2 = 9x x = 9

Explanation:

Three-fourth of a number is 60 more than its one third. The number is- Correct Answer 144 Let, the number is x So, 3x/4 = x/3 + 60 3x/4 - x/3 = 60 ( 9x - 4x) /12 = 60 5x = 720 x = 144

Explanation:

Eighteen years ago , a father was three times as old as his son. Now the father is only twice as old as his son. Then the sum of the present ages of the son and the father is- Correct Answer 108 Let, now son is x years old So, father is 2x years old 18 years ago son was ( x - 18) years old and, 18 years ago father was ( 2x - 18) years old On condition, 2x - 18 = 3 ( x - 18) 2x - 18 = 3x - 54 - x = - 36 x = 36 So, son is 36 years old and Father is 36×2 or 72 years old Sum of sons and fathers age = (36 + 72) years = 108 years

Explanation:

Antholgy : Poems Correct Answer Encyclopaedia : Words Poems দিয়ে Anthology ( সাহিত্য সংকলন ) তৈরি করা যায়, আবার synonyms সমার্থক শব্দ দ্বারা Thesaurus ( সমার্থককোষ ) তৈরি করা যায়

Explanation:

Explosive : Volcano Correct Answer Arid : Desert Valcano ( আগ্নেওগিরি ) যেমন explosive ( বিস্ফোরক ) হয়ে থাকে তেমনি Desert ( মরুভূমি ) arid ( অনুর্বর ) হয়ে থাকে ।

Explanation:

RECALL : REMEMBER Correct Answer Counterfeit : Forge Recall এবং remember শব্দ দুটি সমার্থক; যাদের অর্থ স্মরণ করা। ঠিক option গুলোর মধ্যে counterfeit এবং forge ও সমর্থক; যাদের অর্থ জাল করা ।

Explanation:

Indigenous : Foreign Correct Answer Native : Extraneous Indigenous ( দেশি) এবং foreign ( বিদেশী ) শব্দ দুটি বিপরীতার্থক আবার native ( দেশীয় / স্থানীয় ) এবং extraneous ( বিদেশী ) শব্দ দুটিও বিপরীতার্থক।

Explanation:

[' The research study' subject হিসেবে 3rd person singular number হওয়ায় এরপর and যোগে be verb (is) ও মূল verb ( attempts ) এর সঠিক ব্যবহার হয়েছে । আবার attempts এরপর infinitive ( to acquaint ) এর ব্যবহারও ঠিক আছে ।]

Explanation:

[(ঘনিষ্ঠ, তিরস্কার) শব্দগুচ্ছ শুদ্ধ। এখানে, ঘনিষ্ঠ, তিরস্কার শব্দগুচ্ছ শুদ্ধ। অত্যাধিক, ব্যাতিক্রম এর শুদ্ধ রূপ হলো - অত্যধিক, ব্যতিক্রম। সখ্যতা শব্দের শুদ্ধ রূপ হলো - - সখ্য/সখিত্ব, পন্য এর শুদ্ধরূপ - পণ্য।]