Quantitative Aptitude - Arithmetic Ability Questions

Q:

The lengths of two diagonals of a rhombus are 24 cm and 32 cm. What is the side (in cm) of the rhombus?

A) 20 B) 40
C) 60 D) 80
 
Answer & Explanation Answer: A) 20

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Q:

The average of 10 numbers is 30. If at the time of calculation one number was wrongly taken as 36 instead of 69, then what will be the correct average?

A) 33 B) 33.3
C) 36 D) 39
 
Answer & Explanation Answer: B) 33.3

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Q:

Which of the following will give a terminating decimal?

A) 3/36 B) 9/36
C) 12/36 D) 6/36
 
Answer & Explanation Answer: B) 9/36

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Filed Under: Problems on Numbers
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Q:

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

 

A) (7, 36, 21) B) (9, 46, 27)
C) (11, 56, 33) D) (22, 106, 63)
 
Answer & Explanation Answer: D) (22, 106, 63)

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Filed Under: Odd Man Out
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Q:

If A + B = 90 deg and Cos B = 1/3, then the value of Sin A is

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

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Filed Under: Simplification
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Q:

Find the missing number?

A) 216 B) 1024
C) 1296 D) 2024
 
Answer & Explanation Answer: C) 1296

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Filed Under: Numbers

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Q:

In a rhombus _____.

A) opposite angles are supplementary B) diagonals form two congruent triangles
C) diagonals are congruent D) diagonals do not bisect opposite angles
 
Answer & Explanation Answer: B) diagonals form two congruent triangles

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Q:

Which of the following is the correct option for the congruency of the two triangles ABC and PQR as per the SAS congruency criterion?

 

A) AB = PQ B) BC = QR
C) ∡B = ∡Q D) All options are correct
 
Answer & Explanation Answer: D) All options are correct

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