Aptitude and Reasoning Questions

Q:

A and B can together do a piece of work in 10 days. If A works with twice of his efficiency and B works with an efficiency 1/3rd less than his efficiency, then the work gets completed in 6 days. In how many days can A and B do the work alone respectively?

A) 40/3, 40 B) 20/3, 20
C) 30, 20/3 D) 50/3, 25
 
Answer & Explanation Answer: A) 40/3, 40

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

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Q:

If a/(a+b) = 15/21, what is (a+b)/(a-b) is equal to?

A) 13/9 B) 23/11
C) 14/5 D) 21/9
 
Answer & Explanation Answer: D) 21/9

Explanation:

a/(a + b) = 15/21 → a = 15, a + b = 21

→ b = 21– 15 = 6
⇒ a – b =15 – 6 = 9
⇒ (a + b)/(a – b) = 21/9

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

A woman invests Rs. 2000 at the start of each year at 5% C.I. per annum. How much will her investments be at the end of the 2nd year?

A) Rs. 4305 B) Rs. 430
C) Rs. 4355 D) Rs. 4350
 
Answer & Explanation Answer: A) Rs. 4305

Explanation:
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Filed Under: Compound Interest
Exam Prep: Bank Exams

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Q:

Divide Rs. 80 in the proportion of 3:6:7.

A) Rs. 10, Rs. 35, Rs. 40 B) Rs. 15, Rs. 30, Rs. 35
C) Rs. 15, Rs. 35, Rs.30 D) Rs. 10, Rs. 40, Rs. 35
 
Answer & Explanation Answer: B) Rs. 15, Rs. 30, Rs. 35

Explanation:

3/16 X 80, 6/16 X 80, 7/16 X 80
⇒ 15, 30, 35

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

[15% of 300% of 560] × 2 ÷ 5 =

A) 100 B) 90
C) 85 D) 105
 
Answer & Explanation Answer: A) 100

Explanation:

[15% of 300% of 560] × 2 ÷ 5

= (15 x 300 x 560 x 2)/100 x 100 x 5

~= 100 

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

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Q:

A tangent contains at most how many chords?

A) 1 B) 2
C) 3 D) 0
 
Answer & Explanation Answer: D) 0

Explanation:

A tangent contains ZERO chords, as it touches the circle at only one point.

 

Hence, it does not contain any chord.

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

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Q:

Rizwan has a box in which he kept red and blue marbles. The red marbles and blue marbles were in the ratio 5 : 4. After he lost 5 red marbles the ratio became 10 : 9. How many marbles does he have now?

A) 81 B) 86
C) 76 D) 91
 
Answer & Explanation Answer: C) 76

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

In an army selection process, the ratio of selected to unselected candidates was 6:1. If 30 less had applied and 10 less selected, the ratio of selected to unselected would have been 7:1. How many candidates had applied for the process?

A) 910 B) 1820
C) 455 D) 2730
 
Answer & Explanation Answer: A) 910

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: AIEEE , Bank Exams , CAT

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