3286 . 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

View Answer	Favorite Question

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 .

Bangladesh Bank - Officer - 2001

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

View Answer	Favorite Question

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।

3288 . Tina rented a rickshaw for Tk. 18 plus Tk. 0.10 per km. Ruby rented another rickshaw for Tk.25 plus Tk. 0.05 per km. If each moves d km and paid exactly the same amount of rental, then d=?

A. 100
B. 120
C. 135
D. 140

View Answer	Favorite Question

Answer: Option D

Explanation:

3289 . Tk. 51 is distributed between Sumi and Meem in such a way that Sumi receives Tk.3 less than twice the amount received by Meem. The amount (in Taka) received by Sumi is:

A. 29
B. 39
C. 33
D. 27

View Answer	Favorite Question

Answer: Option C

Explanation:

Let, Meem = x

Sumi = 2x - 3

So, x + 2x - 3 = 51

3x = 54

x = 18

Sumi = 18 × 2 - 3 = 33 ( Tk.)

Agrani Bank Ltd. Recruitment Test for Senior Officer 12.02.2010

A. Tk. 3,600
B. Tk. 5,400
C. Tk. 4,500
D. Tk. 6,300
E. None of these

View Answer	Favorite Question

Answer: Option B

Explanation:

Rahu & Habu together have = {(2 + 4)/(1 + 2 + 3 + 4)}x9000 = 5400 TK.

3291 . Tk.2000 is deposited in a savings account which pays 6% annual interest compounded semi-annually. To the nereast taka, how much is in the account at the end of the year?

A. Tk.2122
B. Tk.2247
C. Tk.2258
D. Tk.2060

View Answer	Favorite Question

Answer: Option A

Explanation:

3292 . Tk 7500 is divided in the ratio of 1:2:3:4:5 find the difference between the greatest and smallest shares?

A. 1500
B. 2000
C. 2600
D. 2700

View Answer	Favorite Question

Answer: Option B

Explanation:

let the ratio be - x, 2x, 3x, 4x, 5x

now,

x + 2x + 3x + 4x + 5x = 7500

15x = 7500

x = 500

Greatest share - 5x = 5*500 = 2500

Smallest share x = 500

Difference - (2500 - 500) = 2000

3293 . Tk.800 amounts to Tk.920 in 3 years at simple interest. If the interest rate is increased by 3%, it would amount to how much?

A. 1182
B. 992
C. 1056
D. 1112

View Answer	Favorite Question

Answer: Option B

Explanation:

3294 . TK. 800 becomes TK. 956 in 3 years at a certain rate of simple interest. If the rate of interest is increased by 4%, what amount will TK. 800 become in 3 years?

A. TK. 1020.80
B. TK. 1025
C. TK. 1052
D. None of these

View Answer	Favorite Question

Answer: Option C

Explanation:

Correct option is C)

(c) Principal =tk.800, Amount =tk.956
⇒S.I.=tk.956−tk.800=tk.156
Time =3 years ∴Rate%p.a.=800×3156×100=6.5.
Now, Principal =Rs.800,Rate%p.a.=10.5, Time =3 years
∴ Amount =tk.800+tk.(800×10.5×3/100)
=tk.800+Rs.252=tk.1052.

Bangladesh Bank - Assistant Director - 2016

A. Tk. 135
B. Tk. 100
C. TK. 120
D. Tk. 150

View Answer	Favorite Question

Answer: Option A

Explanation:

Let, C gets Tk. x

So, A gets Tk x - 15

B gets Tk. (x - 15 - 20) = x - 35

ATQ, x + x - 15 + x - 35 = 355

= > 3x - 50 = 355

= > 3x = 355 + 50 = 405

∴ x = (405/3) = 135

Hence, C gets Tk. 135

Ans.

Officer (General) |-Sonali | Janata | Bangladesh Krishi_Bangladesh Development bank ২৪.০৫.২০১৯

A. Tk.8000
B. Tk.8250
C. Tk.9000
D. Tk.9250

View Answer	Favorite Question

Answer: Option B

Explanation:

Capital, P= 6000 tk

Capital + 4 Year's Interest = 7200 tk

4 Year's Interest = 7200-6000 = 1200 tk

1 Year's Interest = 1200/4 = 300 tk

Interest rate = (300÷6000)×100 = 5%

New Interest Rate, r = 5×1.5 = 7.5%

Year, n = 5

So, the amount = P ( 1 + n.r )

= 6000 { 1 + 5× (7.5÷100)}

= 6000 × 1.375

= 8250 tk.

বাংলাদেশ ব্যাংক || সহকারী পরিচালক (AD) (20-10-2023)

A. 132
B. 120
C. 60
D. 23
E. None of these

View Answer	Favorite Question

Answer: Option B

Explanation:

এটি permutation এর অঙ্ক। 3 জন officer 6 জন থেকে = ⁶P3 এবং 2 জন manager 4 জন থেকে = ⁴P2; total = ⁶P3 + ⁴P2 = 132

update: (11-02-23) it is combination problem. Since the order of vacancies doesn't matter.

⁶C3 = 20 and ⁴C2= 6, 20 × 6 = 120 is the right answer. Given ans is wrong

3298 . To fill a tank, 25 buckets of water are required. How many buckets of water will be required to fill the same tank if the capacity of the bucket is reduced to two-fifth of its present capacity?

A. 62.5
B. 35
C. 10
D. Cannot be determined

View Answer	Favorite Question

Answer: Option A

Explanation:

Let, capacity of the bucket is x litter

So, the capacity of tank is 25x litrer

Reduced capacity of bucket is 25x/5 litrer

So, to fill tank bucket requires = 25x/(2x/5) = (25x × 5) / 2x = 62.5 bucket.

Bangladesh Bank - Assistant Director - 2014

A. multiply 30 by π
B. divide 30 by 2π
C. divide 15 by 2π
D. divide 30 by π

View Answer	Favorite Question

Answer: Option D

Explanation:

3300 . To increase a given present value, the discount rate should

A. be increased
B. be decreased
C. not be changed
D. none of these

View Answer	Favorite Question

Answer: Option B

Explanation:

কোনো কিছু রাখা বুঝাতে Put এর পরে on preposition ব্যবহৃত হয়।

3286 . 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 ?

3287 . 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?

3288 . Tina rented a rickshaw for Tk. 18 plus Tk. 0.10 per km. Ruby rented another rickshaw for Tk.25 plus Tk. 0.05 per km. If each moves d km and paid exactly the same amount of rental, then d=?

3289 . Tk. 51 is distributed between Sumi and Meem in such a way that Sumi receives Tk.3 less than twice the amount received by Meem. The amount (in Taka) received by Sumi is:

3290 . Tk. 9,000 is divided among Abu, Rabu, Babu and Habu by 1 : 2 : 3 : 4 ratio. How much money do Rabu and Habu have together?

3291 . Tk.2000 is deposited in a savings account which pays 6% annual interest compounded semi-annually. To the nereast taka, how much is in the account at the end of the year?

3292 . Tk 7500 is divided in the ratio of 1:2:3:4:5 find the difference between the greatest and smallest shares?

3293 . Tk.800 amounts to Tk.920 in 3 years at simple interest. If the interest rate is increased by 3%, it would amount to how much?

3294 . TK. 800 becomes TK. 956 in 3 years at a certain rate of simple interest. If the rate of interest is increased by 4%, what amount will TK. 800 become in 3 years?

3295 . TK. 355 has been divided among A, B,C in such a way that a had TK. 20 more than B and C had Tk. 15 more than B and C had Tk. 15 more than A How much was C's share?

3296 . Tk.6000 becomes Tk.7200 in 4 years at a certain rate of simple interest. If the rate becomes 1.5 times of itself, the amount of same principal in 5 years will be-

3297 . To fill a number of vacancies, a company must hire 3 officers from 6 applicants, and 2 managers from 4 applicants. What is the total number of ways in which the company can make its selection?

3298 . To fill a tank, 25 buckets of water are required. How many buckets of water will be required to fill the same tank if the capacity of the bucket is reduced to two-fifth of its present capacity?

3299 . To find the diameter of a circle where circumference is 30 inches:

3300 . To increase a given present value, the discount rate should

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