Aptitude and Reasoning Questions

Q:

What is the interest rate per annum, if a sum of money invested at compound interest amount to Rs. 2400 in 3 years and in 4 years to Rs. 2,520?

A) 3.5% B) 4%
C) 5% D) 6.5%
 
Answer & Explanation Answer: C) 5%

Explanation:

Let 'R%' be the rate of interest

From the given data,

25202400 = 1 + R10041 + R10031 + R100 = 6360R = 5

 

Hence, the rate of interest R = 5% per annum.

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Q:

The sum of the two digits of a number is 8. If the number is subtracted from the number obtained by reversing its digits, the result is 54. Find the number ?

A) 28 B) 19
C) 37 D) 17
 
Answer & Explanation Answer: D) 17

Explanation:

Any two digit number can be written as (10P + Q), where P is the digit in the tens place and Q is the digit in the units place.
P + Q = 8 ----- (1)
(10Q + P) - (10P + Q) = 54
9(Q - P) = 54
(Q - P) = 6 ----- (2)
Solve (1) and (2) P = 1 and Q = 7
The required number is = 17

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Filed Under: Problems on Numbers
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1 4093
Q:

In a city of engineers of 4800, the number of female engineers are 3/8th of them. The number of female engineers is what percentage of the number of male engineers?

A) 76 B) 60
C) 56 D) 52
 
Answer & Explanation Answer: B) 60

Explanation:

Total engineers = 4800

Number of female engineers = 3/8 x 4800 = 1800

Then, number of male engineers = 4800 - 1800 = 3000

Now, required is female engineers is what percentage of the number of male engineers

=> 1800 is what % of 3000

=> p x 3000/100 = 1800

=> 30p = 1800

p = 60%

 

Hence, female engineers is 60 percentage of the number of male engineers.

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Filed Under: Percentage
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6 4082
Q:

Which is called 'OFF State' in binary?

A) 4 B) 3
C) 2 D) 1
 
Answer & Explanation Answer: D) 1

Explanation:

'0' is called OFF State in Binary...

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Filed Under: Arithmetical Reasoning
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8 4077
Q:

The Asian Development Bank has approved a $285 million loan to finance a project to construct coal ports by Paradip and Madras Port Trusts.

 

Courses of Action:

I. India should use financial assistance from other international financial organisations to develop such ports in other places.

II. India should not seek such financial assistance from the international financial agencies.

A) Only I follows B) Only II follows
C) Neither I nor II follows D) Both I and II follow
 
Answer & Explanation Answer: A) Only I follows

Explanation:

Clearly, such projects shall be an asset and a source of income to the country later on. So, course I shall follow.

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Q:

 

The above figure is embedded in any of these four figures. The correct figure containing the above figure is

 

 

A) C B) A
C) D D) B
 
Answer & Explanation Answer: C) D

Explanation:
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Filed Under: Pattern Completion
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0 4076
Q:

In a certain code language, "MATERIAL" is written as "RIALMATE". How is "REMEMBER" written in that code language?

A) REMEREBM B) MBEREMER
C) MBERREME D) MBERREEM
 
Answer & Explanation Answer: C) MBERREME

Explanation:
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Filed Under: Coding and Decoding
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Q:

How many lines of symmetry does a Pentagon have?

A) 4 B) 5
C) 6 D) 0
 
Answer & Explanation Answer: B) 5

Explanation:

A regular Pentagon have 5 sides and 5 lines of symmetry. 

  • The number of lines of symmetry in a regular polygon is equal to the number of sides.
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Filed Under: Analytical Reasoning
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