Aptitude and Reasoning Questions

Q:

ΔXYZ is similar to ΔPQR. If ratio of Perimeter of ΔXYZ and Perimeter of ΔPQR is 4:9 and if PQ = 27 cm, then what is the length of XY (in cm)?

A) 9 B) 12
C) 16 D) 15
 
Answer & Explanation Answer: B) 12

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

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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:

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:

A table was sold at a profit of 10%. If its cost price was 5% less and it was sold for Rs. 7 more, the gain would have been 20%. Find the cost price of the table.

A) Rs. 175 B) Rs. 200
C) Rs. 250 D) Rs. 150
 
Answer & Explanation Answer: A) Rs. 175

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

Simple interest on a sum of Rs 67400 for 14 months is Rs 4718. What is the rate (in percentage) of interest per annum?

A) 5.5 B) 6
C) 8 D) 7
 
Answer & Explanation Answer: B) 6

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Filed Under: Simple Interest
Exam Prep: Bank Exams

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Q:

If (7x -­ 13) ­ (12x + 3) = 14, then the value of x is ______ .

A) -6 B) 6
C) -2/5 D) 2/5
 
Answer & Explanation Answer: A) -6

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If a + b = 8 and ab =15, then a3 + b3 is

A) 224 B) 244
C) 152 D) 128
 
Answer & Explanation Answer: C) 152

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

In this question, the sets of numbers given in the alternatives are represented. The columns and rows of Matrix I are numbered from 0 to 4 and that of Matrix II are numbered from 5 to 9. A letter from these matrices can be represented first by its row and next by its column, e.g., D can be represented by 68, 10, etc., and 'R' can be represented by 34, 22, etc. Similarly you have to identify the set for the word 'PIZZA'.

A) 98, 44, 76, 11, 75 B) 88, 04, 96, 33, 13
C) 68, 22, 67, 00, 98 D) 88, 24, 58, 66, 40
 
Answer & Explanation Answer: B) 88, 04, 96, 33, 13

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Filed Under: Figure Matrix
Exam Prep: Bank Exams

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