Bank PO Questions and Answers with Explanation, Job Roles

Q:

What should come next in the following letter sequence?

A A B A B C A B C D A B C D E A B C D

A) A	B) E
C) C	D) B

Answer & Explanation Answer: B) E

Explanation:

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Filed Under: Alphabet Test
Exam Prep: Bank Exams
Job Role: Bank PO

679 231891

Q:

Which compound matches the IR Spectrum?

spectr1525848245.jpg image

A) 1, 5 – hexadiene	B) 3 – Hexanol
C) Trans – 4 – octene	D) None of the above

Answer & Explanation Answer: A) 1, 5 – hexadiene

Explanation:

3 – Hexanol:

There is no alcohol stretch present in the spectrum. Therefore, the above structure is not suitable for the given spectrum.

Trans – 4 – octene:

There is no vinyl bending present in the spectrum. Therefore, the above structure is not suitable for the given spectrum.

1, 5 – hexadiene:

The vinyl bending and other stretches were matched with the above structure.

Hence, the c = c stretch, vinyl bending and stretch were matched with the above structure.

Therefore, the given spectrum belongs to 1, 5 – hexadiene.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

19 223237

Q:

A problem is given to three students whose chances of solving it are 1/2, 1/3 and 1/4 respectively. What is the probability that the problem will be solved?

A) 1/4	B) 1/2
C) 3/4	D) 7/12

Answer & Explanation Answer: C) 3/4

Explanation:

Let A, B, C be the respective events of solving the problem and $A, B, C$ be the respective events of not solving the problem. Then A, B, C are independent event

$∴ A, B, C$ are independent events

Now, P(A) = 1/2 , P(B) = 1/3 and P(C)=1/4

$P (A) = \frac{1}{2}, P (B) = \frac{2}{3}, P (C) = \frac{3}{4}$

$∴$ P( none solves the problem) = P(not A) and (not B) and (not C)

= $P (A \cap B \cap C)$

= $P (A) P (B) P (C)$ $[∵ A, B, C a r e I n d e p e n d e n t]$

= $\frac{1}{2} \times \frac{2}{3} \times \frac{3}{4}$

= $\frac{1}{4}$

Hence, P(the problem will be solved) = 1 - P(none solves the problem)

= $1 - \frac{1}{4}$ = 3/4

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Filed Under: Probability
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

1027 209283

Q:

Simplify the following :

$\frac{37^{3} + 35^{3} + 28^{3} - 3 x 37 x 35 x 28}{37^{2} + 35^{2} + 28^{2} - 37 x 35 - 35 x 28 - 37 x 28}$ ?

A) 100	B) 1
C) 4	D) 0

Answer & Explanation Answer: A) 100

Explanation:

Given $\frac{37^{3} + 35^{3} + 28^{3} - 3 x 37 x 35 x 28}{37^{2} + 35^{2} + 28^{2} - 37 x 35 - 35 x 28 - 37 x 28}$

It is in the form of

$\frac{a^{3} + b^{3} + c^{3} - 3 a b c}{a^{2} + b^{2} + c^{2} - a b - b c - c a}$ = a + b + c

Here a = 37, b = 35 & c = 28

=> a + b + c = 37 + 35 + 28 = 100

Therefore, $\frac{(37)^{3}+(35)^{3}+(28)^{3}-3x37x35x28}{(37)^{2}+(35)^{2}+(28)^{2}-37x35-35x28-37x28}$ = 100

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Filed Under: Simplification
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

26 205912

Q:

Which of the following reactions are exothermic?

$1) C + O_{2} \to {CO}_{2} 2) 2 Mg + O_{2} \to 2 MgO 3) {CuSO}_{4} + 5 H_{2} O \to {CuSO}_{4} . 5 H_{2} O 4) All the above$

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: D) 4

Explanation:

Here all the given options are Exothermic reactions. Exothermic reactions are those reactions which involves the release of heat.

Generally all the combining reactions are exothermic in nature.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

15 194017

Q:

Crack the code & Unlock the Key ?

A) 062	B) 602
C) 042	D) 204

Answer & Explanation Answer: C) 042

Explanation:

From all the hints given,

only 042 satisfies and it unlocks the key.

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Filed Under: Number Puzzles
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

1283 189545

Q:

6, 3, 3, 6, 24, ?

Find the next number in the given number series?

A) 192	B) 186
C) 182	D) 194

Answer & Explanation Answer: A) 192

Explanation:

Given

6 3 3 6 24 ?

Here

6

6 x 0.5 = 3

3 x 1 = 3

3 x 2 = 6

6 x 4 = 24

24 x 8 = 192

The next number in the given series is 192.

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Filed Under: Odd Man Out
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

16 184161

Q:

Find the missing alphabet in the given sequence ?

A, Z, Y, B, C, ?, W, D

A) E	B) Z
C) X	D) F

Answer & Explanation Answer: C) X

Explanation:

first letter A with last letter Z
similarly 2nd last letter Y with 2nd letter B
Now 3rd letter C with 3rd last letter X
4th last letter W with 4th letter D
and so on....

Therefore the missing letter is X

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Filed Under: Alphabet Test
Exam Prep: AIEEE , Bank Exams
Job Role: Bank PO

38 184080

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