31 . There are 5 doors to a lecture room. In how many ways can a student enter the room through a door and leave the room by a different door?

A. 10
B. 20
C. 9
D. 325

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Answer: Option B

Explanation:

To enter the room through one door and leave through a different door, you can choose from 5 doors for entering and then choose from the remaining 4 doors for leaving.

So, the total number of ways a student can enter and leave through different doors is 5 (choices for entering) × 4 (choices for leaving) = 20 ways.

Therefore, the correct answer is 20.

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সহকারী পরিচালক(AD) -12.11.2021

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32 . The present ages of M and N are in the ratio of 6: 4. Five years age, age, their ages were in the ratio of 5: 3. How old is M now

A. 42
B. 24
C. 30
D. 36

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Answer: Option C

Explanation:

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Standard Bank Plc || Trainee Assistant Officer (15-03-2025) || 2025

A. 7 cm
B. 7.1 cm
C. 7.2 cm
D. 7.3 cm

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Answer: Option C

Explanation:

The length is increased from 18 cm to 25 cm. but the area remains same.

Let, new breadth is 'x'

So, old area = new area

18×10 = 25 × x

x = 180/25

x = 7.2

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34 . siddik has a new set of golf clubs . using a club 8,7, and 6 ball travels an average distance of 100 m, 108 m, 114 m, respectively , How far will the ball go if he uses a club 5 ?

A. 122m
B. 120m
C. 118m
D. 116m

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Answer: Option C

Explanation:

114 + 4 = 118

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Bangladesh bank - officer ( general) - 27.04.2018

A. 22I
B. 20L
C. 22L
D. 16K

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Answer: Option C

Explanation:

B C (D) E (F G) H (I J K) L

2+2 = 4

4+4 = 8

8+6 = 14

14+8 = 22

so the required answer is = 22L

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36 . P and Q are two positive integers such that PQ = 64 Which of the following cannot be the value of P +Q?

A. 16
B. 20
C. 35
D. 65

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Answer: Option C

Explanation:

To determine which of the following values cannot be the sum of P and Q,

we need to consider the possible factor pairs of 64. The factor pairs of 64 are:

= 1 * 64

= 2 * 32

= 4 * 16

= 8 * 8

For each factor pair, we can find the sum of P and Q:

P + Q = 1 + 64 = 65
P + Q = 2 + 32 = 34
P + Q = 4 + 16 = 20
P + Q = 8 + 8 = 16
So, the values of P + Q can be 65, 34, 20, and 16. Among the given options, the value that cannot be the sum of P and Q is 35.

Therefore, the answer is 35.

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

A. 3
B. 8
C. 9
D. 11
E. None of these

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Answer: Option C

Explanation:

দেয়া আছে, লাল মার্বেল ৩টি,নীল মার্বেল ৪টি, সবুজ মার্বেল ৪ টি

প্রত্যেকটির ১ টি করে আসতে হলে তাকে কমপক্ষে ৯টি মার্বেল তুলতে হবে।এতে করে দুই কালারের ৮টি এবং অন্য কালারের অবশ্যই একটি আসবেই।

উত্তর : ৯টি

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38 . In a set of 3 numbers, the average of first two numbers is 2, the average of the last two numbers is 3, and the average of the first and the last numbers is 4. What is the average of three numbers?

A. 3
B. 2
C. 2.5
D. 3.5

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Answer: Option A

Explanation:

x + y/2 + (y + z)/2 + (z + x)/2 = 2 + 3 + 4
x + y + z = 9
avg = (x + y + z)/3 = 3

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সমন্বিত ১০ ব্যাংক ও আর্থিক প্রতিষ্ঠান || সিনিয়র অফিসার (10-11-2023)

A. X
B. Y
C. Z
D. Someone else

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Answer: Option C

Explanation:

In Java, you create an object by creating an instance of a class or, in other words, instantiating a class. To create a new object, use Java's new operator. Here's an example using the new operator to create a Rectangle object (Rectangle is a class in the java. awt package).

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Bangladesh bank - officer ( general) - 27.04.2018

A. EQHDMF
B. UOHDMF
C. UHODMF
D. Try your self

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Answer: Option D

Explanation:

এখানে ZVZJD শব্দটি AWAKE শব্দটির প্রত্যেকটি অক্ষরের পূর্ববর্তী অক্ষরগুলোর সমন্বয়ে গঠিত হয়েছে। অনুরূপভাবে, E →E, R →Q, I →H, E →D, N →M, D →C ⸫ নির্ণেয় Code হচ্ছে, EQHDMC.

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Bangladesh Bank - Assistant Director - 2015

A. 16
B. 3 √ 2
C. 2 √ 3
D. √ 6

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Answer: Option C

Explanation:

x^4=144

বা, x^4=(2√3)^4

x=2√3.

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সোনালী ও জনতা ব্যাংক - অফিসার(আইটি) - 02.10.2021

A. 1/2
B. 3/2
C. 7/2
D. 5/2

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Answer: Option A

Explanation:

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43 . If you divide 30 by half and add 10 with the resulting figure , then what is the final result ?

A. 25
B. 70
C. 45
D. 55

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Answer: Option B

Explanation:

Q: If you divide 30 by half and add 10 with the resulting figure , then what is the final result?

Read the question carefully. Divide by half ≠ 30/2.

So, 30 ÷ ½ + 10 = 30 × 2 +10 = 70 (Ans:)

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Bangladesh Bank - Assistant Director - 2015

A. 3
B. 15
C. 5
D. 4

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Answer: Option D

Explanation:

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45 . If 3x-5y=5 and x x + y = 5 7 t h e n w h a t i s t h v a l u e o f x − y i s −

A. -3
B. 3
C. 6
D. 9

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Answer: Option B

Explanation:

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31 . There are 5 doors to a lecture room. In how many ways can a student enter the room through a door and leave the room by a different door?

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32 . The present ages of M and N are in the ratio of 6: 4. Five years age, age, their ages were in the ratio of 5: 3. How old is M now

33 . The length of a rectangle is 18 cm and its breadth is 10 cm, When the length is increased to 25 cm, what will be the breadth of the rectangle if the area remains the same?

34 . siddik has a new set of golf clubs . using a club 8,7, and 6 ball travels an average distance of 100 m, 108 m, 114 m, respectively , How far will the ball go if he uses a club 5 ?

35 . Replace the question mark of the series 2B, 4C, 8E, 14H, (?) from the following alternatives.

36 . P and Q are two positive integers such that PQ = 64 Which of the following cannot be the value of P +Q?

37 . In his pocket, a boy has 3 red marbles, 4 blue marbles, and 4 green marbles. How many will he have to take out of his pocket to ensure that he has taken out at least one of each color?

38 . In a set of 3 numbers, the average of first two numbers is 2, the average of the last two numbers is 3, and the average of the first and the last numbers is 4. What is the average of three numbers?

39 . In a crime , three suspects X, Y, and Z were caught and questioned . Each person said, "One of the other two stole it . I did not do it. " Later on the police found out that Z was lying and these was only one thief . Who was the thief?

40 . In a certain code, AWAKE is written as ZVZJD. How is FRIEND written in that code?

41 . If log x 144 = 4 then find the value of x.

42 . If 9 2 x + 1 = 81 , t h e n x = ?

43 . If you divide 30 by half and add 10 with the resulting figure , then what is the final result ?

44 . If a2 - b2 = 20, a+b = 5, what is the value of a - b ?

45 . If 3x-5y=5 and x x + y = 5 7 t h e n w h a t i s t h v a l u e o f x − y i s −

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