2521 . Rahim's salary is 150% of Karim's salary. Karim's salary is 80% of Shahin's salary. What is the ratio of Shahin's salary to Rahim's salary?

A. 2 to 3
B. 5 to 6
C. 5 to 4
D. 6 to 5
E. None of these

View Answer

Discuss in Forum

Workspace

Report

Answer: Option B

Explanation:

shahin এর salary = S

karim = K = .80s

Rahim = R = 1.5*.80s

S : R = S/R = S/(1.5*.80s)

= 5/6 = 5 to 6

বাংলাদেশ বনশিল্প উন্নয়ন কর্পোরেশন সহকারী ব্যবস্থাপক-০২.০৮.২০১৩

A. 2
B. 14
C. 1
D. 7

View Answer

Discuss in Forum

Workspace

Report

Answer: Option A

Explanation:

2523 . Rahim and Karim donated Tk. 100. each in charity . Karim gives each tk. 1 more than Rahim and Rahim distributes money to 5 more people than Karim . How many people are there in this charity ?

A. 45
B. 72
C. 90
D. 60

View Answer

Discuss in Forum

Workspace

Report

Answer: Option A

Explanation:

2524 . Rahim bought 4 dozen apples at Tk.12 per dozen and 2 dozen apples at Tk.16 per dozen. He sold all of them to earn 20%. At what price per dozen did he sell the apples?

A. 16.80
B. 15.50
C. 16.00
D. 14.40

View Answer

Discuss in Forum

Workspace

Report

Answer: Option C

Explanation:

C.P. of dozen apples = Rs. (12 x 4 + 16 x 2) = Rs. 80
Gain = 20%
∴ S.P. = Rs. (120/100) x 80 = Rs. 96
S.P. per dozen = Rs. (96/6) = Rs. 16

2525 . Rahim has three times as much money as Karim has . If Rahim Tk. 50 then Karim will have three times as much money as Rahim will have . How much money do they have together?

A. 75
B. 100
C. 120
D. 120

View Answer

Discuss in Forum

Workspace

Report

Answer: Option B

Explanation:

Case 1: Rahim has three times as much money as Karim has.
let, karim's money = x, so rahim's money = 3x
Case 2: If Rahim gives Karim TK.50 then Karim will have three times as much money as Rahim will have.
After the condition - Rahim gives Karim TK.50
Karim's money = x + 50 & rahim's money = 3x - 50
After the condition - Karim will have three times as much money as Rahim will have,
karim's maney = 3 * rahim's money
or, x + 50 = 3(3x - 50)
or, x + 50 = 9x - 150
or, 8x = 200
so, x = 25
So, The money do they have together is: x + 3x = 4x = 4*25 = 100
Answer: 100

2526 . Rahim invested in all Tk. 2600 in three different schemes at 8% ,4% and 6% per annum simple interest . At the end of the year, he received the same interest in all the three schemes. What is the money invested in scheme having 4% rate of interest?

A. TK.700
B. Tk. 800
C. TK. 50
D. TK. 1200

View Answer

Discuss in Forum

Workspace

Report

Answer: Option D

Explanation:

He needs to invest money in the inverse ratio of 8 %, 4% and 6%.

The ratio of money at 8% : money invested at 4% : money invested at 6% = 1/8: 1/4: 1/6

1/8*24:¼*24:1/6*24

3:6:4

Sum of the ratios = 3+6+4=13

Money invested 4% SI = 6/13*2600=1200

Ans :1200.

2527 . Rahim is now 10 years younger than Karim. If in 5 years Karim becomes twice as old as Rahim, how old will Rahim be in 3 years?

A. 8
B. 6
C. 14
D. 18

View Answer

Discuss in Forum

Workspace

Report

Answer: Option A

Explanation:

Let, Karim is x years old

Rahim = ( x - 10) years old

According to question,

( x + 5) = 2 ( x - 10 + 5)

x + 5 = 2x - 10

x = 15

After 3 years Rahim will be = 15 - 10 + 3 = 8 years.

2528 . Rahim is now 14 years older than Karim . If in 10 years Rahim will be twice as old as Karim, how old will Rahim be in 5 years?

A. 9
B. 19
C. 21
D. 23
E. None of them

View Answer

Discuss in Forum

Workspace

Report

Answer: Option D

Explanation:

Let's say age of,

K=x years

So, R=(14+x) years

As per the question,

14+x=2x+10

or, x=4 years

So, K=20 years

and, R=14+4=18 years

After 5 years, Rahim's age will be=18+5=23 years

(ans)

2529 . Rahim is two years older than Karim who is twice as old as Ashraf. If the ages of the three total 27 years, how old is Karim?

A. 5
B. 8
C. 9
D. 10

View Answer

Discuss in Forum

Workspace

Report

Answer: Option D

Explanation:

Let, Rahim as R, Karim as K, Ashraf as A

R = 2 + K

K = 2A or A = K/2

now, R+K+A = 27

2 + K+K+K/2 = 27

2K+K/2 = 25

5K = 50

K = 10

So, Karim is 10 years old (Ans)

2530 . Rahim ranks seventh from the top and twenty-sixth from the bottom in class . How many students are there in the class ?

A. 32
B. 33
C. 34
D. 31

View Answer

Discuss in Forum

Workspace

Report

Answer: Option A

Explanation:

7 + 26 - 1 = 32

[ Rahim is counted twice , once in 7th again in 26 th]

Bangladesh Bank - Officer(Cash) - 2016

A. 17%
B. 23%
C. 77%
D. 75%

View Answer

Discuss in Forum

Workspace

Report

Answer: Option B

Explanation:

Let total apple = x

At 1st day: Remaining apple = 40% of x = .4x and throwing apple = .4x *15% = .06x

At 2nd day: Remaining apple = .4x - .06x = .34x and throwing apple = .34x *50% = .17x

So total throwing apple = .06x + .17x = .23 x, that menas 23% of total

2532 . Rahima wanted to arrange 3 of her 4 plants in a row on a shelf. If each of the plants is in a different colored container, how many different arrangements can she make?

A. 24
B. 28
C. 36
D. 7

View Answer

Discuss in Forum

Workspace

Report

Answer: Option A

Explanation:

2533 . Raj, Ishaq and Jerry divided some money among themselves as follows : Raj received 25% of it, Ishaq received 1/5 of it and Jerry received the remaining Tk. 660. How much money did Ishaq receive.

A. Tk. 300
B. Tk. 280
C. Tk. 240
D. Tk. 500
E. None of these

View Answer

Discuss in Forum

Workspace

Report

Answer: Option C

Explanation:

0.25M + (1/5)M + 660 = M

Now, let's solve for M:

Combine like terms on the left side:

(0.25M + 0.2M) + 660 = M

(0.45M) + 660 = M

Now, isolate M on one side of the equation:

0.45M = M - 660

Subtract M from both sides:

0.45M - M = -660

-0.55M = -660

Now, divide both sides by -0.55 to find the value of M:

M = -660 / -0.55 M = 1200

So, the total amount of money they divided (M) is Tk. 1200.

Now, we need to find how much money Ishaq received, which is (1/5) of M:

Ishaq's share = (1/5) * 1200 Ishaq's share = 240

Ishaq received Tk. 240.

2534 . Rajib received 15% discount to purchase his book. The total discount he received was Tk.75. What was the cost of books net of discount?

A. Tk.575
B. Tk.425
C. Tk.450
D. Tk.625

View Answer

Discuss in Forum

Workspace

Report

Answer: Option B

Explanation:

১৫ টাকা কমিশন পায় ১০০ টাকায়

১ টাকা কমিশন পায় ১০০/১৫ টাকায়

৭৫ টাকা কমিশন পায় ১০০*৭৫/১৫ টাকায়

= ৫০০ টাকা

কমিশনের পর দাম হয় = ৫০০-৭৫=৪২৫ টাকা

2535 . Rakib, Raja and Rajib paid a total of 369 taka for their dinner at a restaurant , If Rakib paid 2/3 of the total amount, Raja paid 82 taka and Rajib paid the rest,what fraction of the total amount did Rajib pay?

A. 1/9
B. 1/3
C. 39/82
D. 82/369
E. None of them

View Answer

Discuss in Forum

Workspace

Report

Answer: Option A

Explanation:

2521 . Rahim's salary is 150% of Karim's salary. Karim's salary is 80% of Shahin's salary. What is the ratio of Shahin's salary to Rahim's salary?

2522 . Rahim, Karim and James paid a total of Tk. 45 for their dinner at a restaurant. If Rahim paid of the total amount, Karim paid Tk.17 and James paid the rest then what fraction of the total amount did james pay?

2523 . Rahim and Karim donated Tk. 100. each in charity . Karim gives each tk. 1 more than Rahim and Rahim distributes money to 5 more people than Karim . How many people are there in this charity ?

2524 . Rahim bought 4 dozen apples at Tk.12 per dozen and 2 dozen apples at Tk.16 per dozen. He sold all of them to earn 20%. At what price per dozen did he sell the apples?

2525 . Rahim has three times as much money as Karim has . If Rahim Tk. 50 then Karim will have three times as much money as Rahim will have . How much money do they have together?

2526 . Rahim invested in all Tk. 2600 in three different schemes at 8% ,4% and 6% per annum simple interest . At the end of the year, he received the same interest in all the three schemes. What is the money invested in scheme having 4% rate of interest?

2527 . Rahim is now 10 years younger than Karim. If in 5 years Karim becomes twice as old as Rahim, how old will Rahim be in 3 years?

2528 . Rahim is now 14 years older than Karim . If in 10 years Rahim will be twice as old as Karim, how old will Rahim be in 5 years?

2529 . Rahim is two years older than Karim who is twice as old as Ashraf. If the ages of the three total 27 years, how old is Karim?

2530 . Rahim ranks seventh from the top and twenty-sixth from the bottom in class . How many students are there in the class ?

2531 . Rahim sells 60% of apples he had and throws away 15% of the remainder. Next day he sells 50% of the remainder and throws away the rest. what percent (in total) of his apples does Rahim throw?

2532 . Rahima wanted to arrange 3 of her 4 plants in a row on a shelf. If each of the plants is in a different colored container, how many different arrangements can she make?

2533 . Raj, Ishaq and Jerry divided some money among themselves as follows : Raj received 25% of it, Ishaq received 1/5 of it and Jerry received the remaining Tk. 660. How much money did Ishaq receive.

2534 . Rajib received 15% discount to purchase his book. The total discount he received was Tk.75. What was the cost of books net of discount?

2535 . Rakib, Raja and Rajib paid a total of 369 taka for their dinner at a restaurant , If Rakib paid 2/3 of the total amount, Raja paid 82 taka and Rajib paid the rest,what fraction of the total amount did Rajib pay?

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক