Aptitude and Reasoning Questions

Q:

If x1x2x3 = 4(4 + x1 + x2 + x3 ), then what is the value of [1/(2 + x1  )] + [1/(2 + x2 )] + [1/(2 + x3 )]?

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

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If a + b = 1, then a4 + b4 - a3 - b3 - 2a2b2 + ab is equal to

A) 1 B) 2
C) 4 D) 0
 
Answer & Explanation Answer: D) 0

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

A right circular cylinder is partially filled with water. Two iron spherical balls are completely immersed in the water so that the height of the water in the cylinder rises by 4 cm. If the radius of one ball is half of the other and the diameter of the cylinder is 18 cm, then the radii of the spherical balls are

A) 6 cm and 12 cm B) 4 cm and 8 cm
C) 3 cm and 6 cm D) 2 cm and 4 cm
 
Answer & Explanation Answer: C) 3 cm and 6 cm

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

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Q:

A trader buys 500 kgs of cotton for Rs 9,000. 10% of this cotton is spoiled due to rain. At what rate (Rs/Kg) should he sell the rest to earn 10% profit?

A) 25 B) 30
C) 22 D) 20
 
Answer & Explanation Answer: C) 22

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

In the following question, select the related number from the given alternatives.

695 : 659 : : 839 : ?

A) 392 B) 984
C) 931 D) 893
 
Answer & Explanation Answer: D) 893

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

Expanded and simplification of (x + 3)(x - 1) will be equal to

A) x2+ 2x - 3 B) x2 + 3x + 2
C) x2 - 2x + 3 D) x2 + 3x - 2
 
Answer & Explanation Answer: A) x2+ 2x - 3

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

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Q:

In the following question, select the missing number from the given series.672, 666, 660, 654, ?

A) 648 B) 650
C) 646 D) 652
 
Answer & Explanation Answer: A) 648

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Filed Under: Number Series

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Q:

The mean of 10 observations is 17. One more observation is included and the new mean becomes 16. The 11th observation is

 

A) 16 B) 8
C) 6 D) 12
 
Answer & Explanation Answer: C) 6

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Filed Under: Average
Exam Prep: Bank Exams

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