Aptitude and Reasoning Questions

Q:

The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is:-

A) 1:2  B) 2:3
C) 3:4 D) 3:5
 
Answer & Explanation Answer: B) 2:3

Explanation:

Let the ratio be x : y
Total boys = 16.4 X x
Total girls = 15.4 X y
Total number of students in class = 16.4x + 15.4y
The average age of all students is 15.8
The total age of boys is 15.8x
The total age of girls is 15.8y
16.4x + 15.4y = 15.8x + 15.8y
0.6 x = 0.4 y
x/y = 0.4/0.6 = 2/3

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

Select the related word/letters/numbers from the given alternatives. CURE : DISEASE :: HEAL : ?

A) Illness B) Injury
C) Recover D) Sick
 
Answer & Explanation Answer: B) Injury

Explanation:
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Q:

874.96 + 94.0091 × 34.98 –1244.98 = ?

A) 2745 B) 4000
C) 1600 D) 2920
 
Answer & Explanation Answer: D) 2920

Explanation:
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Q:

Divide 32 into two parts such that the sum of the square of the parts is 674. What is the value of the parts?

A) 22, 10 B) 30, 2
C) 25, 7 D) 20, 12
 
Answer & Explanation Answer: C) 25, 7

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

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Q:

If P = 99, then the value of P(P2+ 3P + 3) is

A) 9999 B) 999999
C) 99999 D) 9999999
 
Answer & Explanation Answer: B) 999999

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If 2x+13x = 5, the value of 5x6x2+20x+1 is

A) 1/4 B) 1/6
C) 1/5 D) 1/7
 
Answer & Explanation Answer: D) 1/7

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

The perimeter and the length of one of the diagonals of a rhombus is 34 cm and 8 cm respectively. Find the length of its other diagonal (in cm).

 

A) 7.5 B) 30
C) 22.5 D) 15
 
Answer & Explanation Answer: D) 15

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

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Q:

Select the related word/letters/number from the given alternatives.
34 : 81 : : 23 : ?

A) 8 B) 16
C) 4 D) 12
 
Answer & Explanation Answer: A) 8

Explanation:
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Filed Under: Analogy
Exam Prep: Bank Exams

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