3526 . 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?

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

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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

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3527 . 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

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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.

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

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

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Answer: Option D

Explanation:

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3529 . To increase a given present value, the discount rate should

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

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Answer: Option B

Explanation:

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

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3530 . To produce an old photograph, a photographer charges x dollars to make a negative, 3x/5 dollars for each of the first 10 prints, and x/5 dollars for each print in excess of 10 prints. If 45 dollars is the total charge to make a negative and 20 prints from an old photograph, how many dollars the photographer charges to make a negative?

A. 3
B. 3.5
C. 4
D. 4.5
E. None of these

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Answer: Option E

Explanation:

According to the question,

x + 10 × (3x/5) + (20 - 10) × x/5 = 45

or, x + 6x + 2x = 45

or, 9x = 45

or, x = 45/9 = $5

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3531 . To represent a family budget on a circle graph, how many degrees of the circle should be used to represent an item that is 20% of the total budget?

A. 72°
B. 76°
C. 60°
D. 20°

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Answer: Option A

Explanation:

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Basic bank recruitment 2018; auditor 26.01.2018 || Image 2018

A. 18
B. 24
C. 16
D. 12

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Answer: Option C

Explanation:

ধরি, x বছর পর রাতুলের বাবার বয়সের দ্বিগুন হবে।

40 + x = 2 ( 12 + x)

40 + x = 24 + 2x

2x - x = 40 - 24

c = 16

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3533 . Today is Monday. After 61 days, it will be

A. Wednesday
B. Saturday
C. Tuesday
D. Friday

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Answer: Option B

Explanation:

The correct option is B Saturday
Each day of the week is repeated after 7 days.
So, after 63 days, it will be Monday.
∴ After 61 days, it will be Saturday.

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Bangladesh Bank - Assistant Director - 2010

A. p/2-10
B. 3p/4-5
C. 3p/2-5
D. 5p-5
E. None of these

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Answer: Option B

Explanation:

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3535 . Tom, Dick and Harry went for lunch to a restaurant. Tom had Tk. 100 with him. Dick had Tk. 60 and Harry had Tk . 40. They got a bill for Tk. 104 and decided to give a tip of Tk. 16 . They further decided to share the total expenses in the ratio of the amounts of money each carried . They amount of money which Tompaid more than what Harry paid is Tk.---

A. 120
B. 36
C. 60
D. 24
E. None of these

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Answer: Option B

Explanation:

Total pay = 104 + 16 = 120 TK

Now, Tom : Dick : Harry = 100 : 60 : 40 = 5 : 3 : 2

So, Tom paid = 5 / (5 + 3 + 2) × 120 = 60 TK

Harry paid = 2 / (5 + 3 + 2) × 120 = 24 TK

Tom more paid than Harry = 60 - 24 = 36 TK

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Jamuna Bank Ltd - Probationary Officer - 2009

A. 120
B. 60
C. 24
D. 36
E. 200

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Answer: Option D

Explanation:

Total Expense = 104 + 16 = $ 120

Ratio = 100 : 60 : 40 = 5 : 3 : 2

Tom paid = 120 × ( 5/10) = 60

Harry paid = 120 ×( 2/10) = 24

60 - 24 = 36.

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Bangladesh Bank - Assistant Director - 2009

A. x - 1000
B. x/2-100
C. x/2-2000
D. None

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Answer: Option B

Explanation:

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3538 . Topu's income is Tk.2,000 more than that of Jamal. Their total salary is Tk.x. What is Jamal's salary?

A. x/2-1000

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Answer: Option A

Explanation:

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বিমান বাংলাদেশ এয়ারলাইন্স লিঃ নিয়োগ পরীক্ষা-২০১৮। গ্রাউন্ড সার্ভিস অ্যাসিসটেন্ট। ১৩.১০.২০১৮

A. Tk. 620
B. Tk. 650
C. Tk. 675
D. Tk. 600
E. None of these

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Answer: Option D

Explanation:

Let the original prices of the shirt and the pant be S & P respectively.

Then, S + P = 850 or, P = 850 - S

Again, 1.12S + 1.05P = 934.50

or, 1.12S + 1.05(850 - S) = 934.50

or, 1.12S + 1.05x850 - 1.05S = 934.50

or, 0.07S = 934.50 - 892.50 = 42

or, S = 42/0.07 = 600 TK.

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3540 . Total production in July is 40 units. what is the approximate average unit cost for July?

A. 115
B. 140
C. 90
D. 3,600

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Answer: Option B

Explanation:

The average cost for 40 units Would be given by (Total cost/No.of units) = ( 4000 + 800 + 1200)/40 =
6000
40
= 150

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Bangladesh Bank - Officer - 2015

3526 . 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?

3527 . 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?

3528 . To find the diameter of a circle where circumference is 30 inches:

3529 . To increase a given present value, the discount rate should

3531 . To represent a family budget on a circle graph, how many degrees of the circle should be used to represent an item that is 20% of the total budget?

3532 . Today is Arif's 12 th birthday and his father's 40 th birthday. how many years from today will Arif's father be twice as old as Arif at that time?

3533 . Today is Monday. After 61 days, it will be

3534 . Together, Andrea and Brian weight p pounds. Brian weight 10 pounds more than Andrea. Brain and Andrea's dog Cubby, weight p/4 pounds more than Andrea. In terms of p, what is Cubby's weight in pounds?

3536 . Tom, Dick and Harry went for lunch to a restaurant. Tom had $100 with him , Dick had $60 and Harry had $40. They got a bill for $104 and decided to give a tip of $16. They further decided to share the total expenses in the ratio of the amounts of money

3537 . Topu's income is Tk. 2,000 more than that of Jamal. Their total salary is Tk. x. What is Jamal's salary?

3538 . Topu's income is Tk.2,000 more than that of Jamal. Their total salary is Tk.x. What is Jamal's salary?

3539 . Total price of a shirt and a pant is Tk. 850. If the price of the shirt increases by 12% and the pant by 5% then the total price become Tk. 934.50. What was the original price of the shirt before price increment?

3540 . Total production in July is 40 units. what is the approximate average unit cost for July?

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