3271 . Three number are added in pairs , the sums so obtained are 20,27 and 23. What are those three numbers?

A. 6,4and 15
B. 9, 11 and 14
C. 8, 12 and 15
D. 10, 8 and 17

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Answer: Option C

Explanation:

প্রিমিয়াম প্ল্যান: ১ মাস

99 ৳

৩০ দিনের জন্য সকল লাইভ এবং আর্কাইভ মডেল টেস্ট, প্রশ্ন ব্যাংক ও লেকচার শিট সহ অ্যাপ এর প্রিমিয়াম সব এক্সেস পাবেন।

সাবস্ক্রিপশন লিংক

3272 . Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is ---

A. 75
B. 81
C. 85
D. 89
E. None of these

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Answer: Option C

Explanation:

১৮৮৬ সালের ২৮ অক্টোবর যুক্তরাষ্ট্রের নিউইয়র্কে তৎকালীন বেডলোপ দ্বীপে স্ট্যাচু অব লিবার্টি (Statue Of Liberty) স্থাপন করা হয়। এটি ফ্রান্স বন্ধুত্বের নিদর্শনস্বরূপ মার্কিন যুক্তরাষ্ট্রকে উপহার দেয়।

3273 . Three partners shared the profit in a business in the ratio 5 : 7 : 8. They had partnership for 14 months, 8 months and 7 months respectively. What was the ration of their investments?

A. 5 : 7 : 8
B. 20 : 49 : 64
C. 38 : 28 : 21
D. 18 : 28 : 56

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Answer: Option B

Explanation:

Hints: let the investment Take was x for 14 months, y for 8 months and z for 7 months

14x : 8y : 7z = 5: 7 : 8

so, 14x/8y = 5/7

y = 49x/20

and 14x/7z = 5/8

z = 16x / 5

x : y : z = x : 49x/20 : 16x /5 = 20 : 49 : 64

3274 . Three pipes A, B and C can fill a tank in 6 hours. After working at it together for 2 hours. C is closed and A and B can fill the remaining part in 6 hours. The number of hours taken by C alone to fill the tank is:

A. 8 hours
B. 14 hours
C. 10 hours
D. 18 hours

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Answer: Option D

Explanation:

Basic bank recruitment 2018; auditor 26.01.2018 || Image 2018

A. 54
B. 5.64
C. 98
D. 1.63

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Answer: Option C

Explanation:

3276 . Three pipes P,Q and R can fill a tank in 6 hours. After working all three together for 2 hours. R is closed and P and Q can fill the remaining part in 7 hours . The number of hours taken by R alone fill the thank is --

A. 10
B. 12
C. 14
D. 16
E. None

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Answer: Option C

Explanation:

P, Q & R alltogether can fill 1/6 th of the tank in 1 hour

So, in 2 hours they fill = 2×1/6 = 1/3 of the tank

Remining part to be filled = 1 - 1/3 = 2/3 of the tank

P & Q together in 7 hours can fill 2/3 of the tank

So, P & Q together in hour can fill = 2/(3×7) = 2/21 of the tank

So, R alone can fill in 1 hour = 1/6 - 2/21 = (7 - 4)/42 = 1/14 of the tank

Therefore, R alone can fill the tank in 14 hours.

3277 . Three shirts and Five ties cost Tk. 23. Five shirts and one tie cost Tk. 20. What is the price of one shirt?

A. Tk 3.50
B. Tk. 2.50
C. Tk. 6.00
D. Tk. 3.00

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Answer: Option A

Explanation:

Let S represent the price of one shirt in Tk, and let T represent the price of one tie in Tk.

From the given information, we can create two equations:

"Three shirts and five ties cost Tk. 23": 3S + 5T = 23

"Five shirts and one tie cost Tk. 20": 5S + T = 20

Now, we can solve this system of equations using the method of substitution or elimination. Let's use the elimination method:

First, we'll multiply the second equation by 5 to make the coefficients of T in both equations equal:

5(5S + T) = 5(20) 25S + 5T = 100

Now, we have the system of equations:

3S + 5T = 23
25S + 5T = 100

We can subtract equation 1 from equation 2 to eliminate T:

(25S + 5T) - (3S + 5T) = 100 - 23

Simplify:

22S = 77

Now, divide both sides by 22 to find the price of one shirt (S):

S = 77 / 22 S = 3.50

So, the price of one shirt is Tk. 3.50.

সহকারী পরিচালক(AD) -12.11.2021

A. 7 hrs
B. 6.5 hrs
C. 7.5 hrs
D. 5.0 hrs

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Answer: Option A

Explanation:

Hints: Answer not given.

A + B s 1 hour work = ( 1/12 + 1/15) = 3/20

A + C s hours work = ( 1/12 + 1/20) = 2/15

Part filled in 2 hrs = ( 3/20 + 2/15) = 17/60

part filled 6 hrs = (3× 17/60) = 17/20

Remaining part = ( 1 - 17/20) = 3/20

Now, it is the turn of A and B and 3/20 part is filled by A and B in 1 hour

Total time taken to fill the tank = ( 6 + 1) = 7 hrs

3279 . Three times a number minus 7 is 32. What is the twice of the number?

A. 26
B. 13
C. 39
D. 16
E. None of these

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Answer: Option A

Explanation:

Let the number be N.

According to the question,

3N - 7 = 32

or, 3N = 32 + 7 = 39

So, N = 39/3 = 13

Therefore, twice of N or 2N = 2 x 13 = 26.

3280 . Three times the first of three consecutive odd integers is 3 more than twice the third. What is the third integer?

A. 9
B. 44
C. 13
D. 15

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Answer: Option D

Explanation:

আশুগঞ্জ পাওয়ার স্টেশন কোম্পানী লিঃ (APSCL) || সহকারী প্রকৌশলী (মেকানিক্যাল ও ইলেকট্রিক্যাল এন্ড ইলেকট্রনিক্স) (27-09-2024) || 2024

A. 11 : 1 : 2
B. 1 : 2 : 3
C. 2 : 1 : 3
D. None of these

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Answer: Option D

Explanation:

Dutch Bangla Bank || Sales Manager (18-09-2024) || 2024

A. 24
B. 30
C. 34
D. 40
E. None of them

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Answer: Option B

Explanation:

1 faster person = 2 slower person
so , 2 faster + one slower = 5 slower person
5 slower person can do the work in 12 days
1 ,, ,, ,, ,, 12X5 days = 60 days
As, 2 slower = 1 faster then,
1 faster person can do the work in 60/2 = 30 days

3283 . Three workers can do a job in 12 days. Two of the workers work twice as fast as the third. How long would it take one of the faster workers to do the job himself ?

A. 24
B. 30
C. 32
D. None of these

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Answer: Option B

Explanation:

Bangladesh Bank - Officer - 2001

A. 57
B. 15
C. 76
D. 38

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Answer: Option A

Explanation:

ধরি, ৩ জন বালকের মারবেল আছে

যথাক্রমে ১৯ক, ৫ক, ৩ক টি

প্রশ্নমতে, ৩ক = ৯

ক = ৩

সুতরাং, সবচেয়ে বেশি মারবেল আছে = ১৯ × ৩ = ৫৭ টি।

3285 . Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?

A. 0.45
B. 0.4
C. 0.25
D. 0.5
E. None of these

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Answer: Option A

Explanation:

যুক্তরাষ্ট্রের অনুষ্ঠিত ৪৫তম Copa America Football Tournament 2016 এর চ্যাম্পিয়ন দেশ চিলি। রানার্স আপ হয় আর্জেন্টিনা। এটি ছিল শতবর্ষী কোপা আমেরিকা। ৪৬ তম কোপা আমেরিকা অনুষ্ঠিত হবে ২০১৯ সালে ব্রাজিলে।

3271 . Three number are added in pairs , the sums so obtained are 20,27 and 23. What are those three numbers?

3272 . Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is ---

3273 . Three partners shared the profit in a business in the ratio 5 : 7 : 8. They had partnership for 14 months, 8 months and 7 months respectively. What was the ration of their investments?

3274 . Three pipes A, B and C can fill a tank in 6 hours. After working at it together for 2 hours. C is closed and A and B can fill the remaining part in 6 hours. The number of hours taken by C alone to fill the tank is:

3275 . Three pipes are used to fill a pool with water. Individually they can fill the pool in 9 hours, 6 hours and 3 hours. How many minutes will it take to fill the pool if three pipes are used simultaneously?

3276 . Three pipes P,Q and R can fill a tank in 6 hours. After working all three together for 2 hours. R is closed and P and Q can fill the remaining part in 7 hours . The number of hours taken by R alone fill the thank is --

3277 . Three shirts and Five ties cost Tk. 23. Five shirts and one tie cost Tk. 20. What is the price of one shirt?

3278 . Three taps A, B and C can fill a tank in 12,25 and 20 hours respectively. If a is open all the time and B and C are open for one hour each alternately, the tank will be full in :

3279 . Three times a number minus 7 is 32. What is the twice of the number?

3280 . Three times the first of three consecutive odd integers is 3 more than twice the third. What is the third integer?

3282 . Three workers can do a job in 12 days . Two the workers work twice as fast as the third. How long would it take one of the faster workers to do the job himself?

3283 . Three workers can do a job in 12 days. Two of the workers work twice as fast as the third. How long would it take one of the faster workers to do the job himself ?

3284 . Threee boys have marbles in the ratio of 19:5:3. If the boy with the least number has 9 marbles, how many marbles does the boy with the highest number have?

3285 . Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?

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