Aptitude and Reasoning Questions

Q:

A can paint a house in 45 days and B can do it in 15 days. Along with C, they did the job in 5 days only. Then, C alone can do the job in how many days?

A) 12 B) 9
C) 15 D) 8
 
Answer & Explanation Answer: B) 9

Explanation:
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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

Select the odd word/letters/number/number pair from the given alternatives.

A) Perpendicular B) Base
C) Hypotenuse D) Radius
 
Answer & Explanation Answer: D) Radius

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

A boat moves down stream at the rate of 8km/hr. and upstream at 4Km/hr. The speed of the boat in still waters is:

A) 4.5 km/hr. B) 5 km/hr.
C) 6 km/hr. D) 6.4 km/hr.
 
Answer & Explanation Answer: C) 6 km/hr.

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Filed Under: Boats and Streams
Exam Prep: Bank Exams

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Q:

What should come in place of question mark (?) in the following question? (You do not have to calculate the exact value.)

(√80.997 - √25.001) × (√120.98 + √16.02) = ?

A) 20 B) 30
C) 40 D) 50
 
Answer & Explanation Answer:

Explanation:

Ans. 
Approximating the values:
(√81 - √25) × (√121 + √16) = ?
(9 - 5) × (11 + 4) = ?
4 × 15 = ?
? = 60

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , GATE

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Q:

In these questions, the relationship between two elements is shown in the statements. These statements are followed by two conclusions.
Statement:
A = M >P, N > R, A > T
Conclusion:
I. T = P
II. R < A

A) If only conclusion I follow. B) If only conclusion II follow.
C) If either conclusion I or conclusion II follows. D) If neither conclusion I nor II follows.
 
Answer & Explanation Answer: D) If neither conclusion I nor II follows.

Explanation:

A = M >P, N > R, A > T
I. T = P (false) There is no relation between T and P.
For conclusion II -
A = M >P, N > R
II. R < A (false) - there is no relation between R and A.
Hence, neither conclusion I nor II follows.

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Filed Under: Coding and Decoding
Exam Prep: AIEEE , Bank Exams , GATE

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Q:

What is the HCF (highest common factor) of 57 and 513?

A) 10 B) 57
C) 3 D) 27
 
Answer & Explanation Answer: B) 57

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Filed Under: HCF and LCM
Exam Prep: Bank Exams

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Q:

If 3x + 4y – 2z + 9 = 17, 7x + 2y + 11z + 8 = 23 and 5x + 9y + 6z – 4 = 18, then what is the value of x + y + z – 34?

A) – 28 B) – 14
C) – 31 D) – 45
 
Answer & Explanation Answer: C) – 31

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If 3n = 2187, then the value of n is:

A) 13 B) 14
C) 15 D) 16
 
Answer & Explanation Answer: B) 14

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Filed Under: Simplification
Exam Prep: Bank Exams

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