Aptitude and Reasoning Questions

Q:

What is the fourth proportional to 336, 288 and 161?

A) 184 B) 115
C) 138 D) 134
 
Answer & Explanation Answer: C) 138

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

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Q:

Which of the following pair of numbers is the solution of the equation 3x+2+ 3x= 10 ?

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

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Concept of Nehative Work

A tub can be filed in 20 minutes but there is a lekage in it which can empty the full tub in 60 minutes. In how many minutes it can be filled?

Answer

Filling efficiency = 5%        


Emptying efficiency = 1.66%  


Net efficiency = 5-1.66 = 3.33%


Therefore, Required time to fil the tub =100/3.33= 30 minutes

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Subject: Time and Work

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Q:

In the following question, a matrix of certain characters is given.These characters follow a certain trend, row-wise or column wise.Find out this trend and choose the missing character accordingly.

13 12 5
17 15 8
25 24 ?

29

21 20

A) 7 B) 9
C) 11 D) 15
 
Answer & Explanation Answer: A) 7

Explanation:

 Clearly, (3rd column)2 + (2nd column)2 = (1st column)2
In the first row, 52 + 122 = 132.
In the second row, 82 + 152 = 172.
Let the missing number in the third row be y.
Then y2 + 242 = 252 or y2 + 576 = 625 or y2 = 49 or y = 7.

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Q:

7 hrs after a goods train passed a station, another train travelling at a speed of 54 km/hr following that goods train passed through that station. If after passing the station the train overtakes the goods train in 11 hours. What is the speed of the goods train?

A) 39.6 km/hr B) 49.5 km/hr
C) 33 km/hr D) 26.4 km/hr
 
Answer & Explanation Answer: C) 33 km/hr

Explanation:
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Filed Under: Problems on Trains

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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

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Filed Under: Compound Interest
Exam Prep: Bank Exams

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Q:

Manu invested an amount of Rs. 14800 at the rate of 7% per annum. After how many years will she obtain a simple interest of Rs.15800?

A) 16.75 yrs B) 15.25 yrs
C) 14 yrs D) 13.5 yrs
 
Answer & Explanation Answer: B) 15.25 yrs

Explanation:

We know that,

I = PTR/100

ATQ,

15800 = 14800 x T x 6/100

T = 15800/148x7

T = 15800/1036

T = 15.25 yrs.

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

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Q:

The average age of Ram and Rahim is 18 years. The average age of Rahim and Ramesh is 25 years. The average age of Ram and Ramesh is 29 years. What is the age (in years) of the eldest of the three?

A) 14 B) 22
C) 28 D) 36
 
Answer & Explanation Answer: D) 36

Explanation:
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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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