Quantitative Aptitude - Arithmetic Ability Questions

Q:

What is the value of tan3A?

A) (3tanA -­ tan3A)/(1 -­ 3tan2A) B) (3tanA + tan3A)/(1 + 3tan2A)
C) (3tanA -­ tan3A)/(1 + 3tan2A) D) (3tanA + tan3A)/(1-­ 3tan2A)
 
Answer & Explanation Answer: A) (3tanA -­ tan3A)/(1 -­ 3tan2A)

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

A fan is sold at a discount of 37.5%. If the marked price of the fan is Rs 7200, then what is the selling price (in Rs) of the fan?

A) 4500 B) 4350
C) 5240 D) 5120
 
Answer & Explanation Answer: A) 4500

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

In each of these questions, a question is given followed by information in three statements. You have to find out the data in which statement(s) is sufficient to answer the question and mark your answer accordingly. What are the marks scored by Abhijit in English?

I. Marks scored by Abhijit in Maths are more than his marks in Science by 20.

II. Total marks scored by Abhijit in Maths, Science and English are 198.

III. Marks scored by Abhijit in Science are more than his marks in English by 12.

A) Any two of the three B) Only II and III
C) All I, II and III D) Question cannot be answered even with the information in all the three statements
 
Answer & Explanation Answer: C) All I, II and III

Explanation:

Suppose marked scored by Abhijit in English = x
From statement I,
Marks in science = x + 12
From statement III,
Marks in mathematics = x + 12 + 20
= x + 32
From statement II,
English + Science + Mathematics = 198
x + x +12 + x + 38 = 198
3x = 154
x = 154/3
All I, II and III are required to find answer.

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Q:

A train 240 meters in length crosses a telegraph post in 16 seconds. The speed of the train is?

A) 50 Km/hr B) 52 Km/hr
C) 54 Km/hr D) 56 Km/hr
 
Answer & Explanation Answer: C) 54 Km/hr

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Q:

Diameter of a car wheel is 21 cm. A car driver moving at the speed of 66 km/hr takes 36 seconds to reach a destination. How many revolutions will the wheel make during the journey?

 

 

A) 1800   B) 1500
C) 1200   D) 1000
 
Answer & Explanation Answer: D) 1000

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

If the numbers  93, 204, 256 are arranged in ascending order, then the right arrangement is 

A) 256 < 204 < 93 B) 93 < 204 < 256
C) 204 < 256 < 93 D) 256 < 93 < 204
 
Answer & Explanation Answer: D) 256 < 93 < 204

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Filed Under: Square Roots and Cube Roots
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Q:

A contractor has got two orders A and B. On one (A) he spends Rs. 25,000 and makes a bill of Rs. 30,500. On the other (B) he makes a bill keeping a profit of 20%. Which of the two orders is more profitable to him?

A) B B) A
C) A nor B D) None of the above
 
Answer & Explanation Answer: B) A

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

Vinay professes to lose 4% on sugar and uses a weight of 620 gm instead of 1 kg. What is the total profit percentage?

 

A) 44.24   B) 34.14  
C) 35.41   D) 54.84
 
Answer & Explanation Answer: D) 54.84

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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