Quantitative Aptitude - Arithmetic Ability Questions

Q:

In triangle ABC measure of angle B is 90 deg. If sinA = 24/25, and AB = 1.4cm, then what is the length (in cm) of side BC.

A) 4.8 B) 5
C) 3 D) 5.6
 
Answer & Explanation Answer: A) 4.8

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Q:

For real a, b and c if a2 + b2 + c2 = ab + bc + ca, then find the value of a+b+c2.

A) 9a2 B) 81a2
C) 27a2 D) 243a2
 
Answer & Explanation Answer: A) 9a2

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Q:

If two complimentary angles are in the ratio of 11 : 7, find the smaller angle.

A) 35 deg B) 55 deg
C) 45 deg D) 25 deg
 
Answer & Explanation Answer: A) 35 deg

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Q:

The radii of two cylinders are in the ratio 2:3 and their heights are in the ratio 5:3. The ratio of their volumes is

A) 27:20 B) 20:27
C) 4:9 D) 9:4
 
Answer & Explanation Answer: B) 20:27

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Q:

What is the altitude of an equilateral triangle whose side is 12√3 cm?

A) 12 cm B) (15√3)/2 cm
C) (9√3)/2 cm D) 18 cm
 
Answer & Explanation Answer: D) 18 cm

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Q:

The surface area of a sphere is 2464 cm². Find its diameter (in cm).

A) 14 B) 56
C) 28 D) 42
 
Answer & Explanation Answer: C) 28

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Q:

The cost of one dozen bananas is Rs.5. The cost of one dozen oranges is Rs.75. What will the cost of one and a quarter dozen bananas and three-fourth dozen oranges?

A) Rs. 109.25 B) Rs. 87.25
C) Rs. 71.75 D) Rs. 62.50
 
Answer & Explanation Answer: D) Rs. 62.50

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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) (14, 29, 30) B) (17, 35, 36)  
C) (15, 32, 33)   D) (21, 43, 44)
 
Answer & Explanation Answer: C) (15, 32, 33)  

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