Aptitude and Reasoning Questions

Q:

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.

100, -20, 4, ? , 0.16, -0.032

A) 0.8 B) 1
C) -1 D) -0.8
 
Answer & Explanation Answer: D) -0.8

Explanation:
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Filed Under: Number Series
Exam Prep: Bank Exams

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Q:

1/2 - 1/8 =

A) 1/2 B) 3/8
C) 2/3 D) 3/2
 
Answer & Explanation Answer: B) 3/8

Explanation:

Now to find the difference in the given fractions, 1/2 - 1/8

First take the LCM of 2 & 8

LCM of 2 & 8 is 8

Then,

1/2 - 1/8

= (4 - 1)/8

= 3/8

 

Hence, 1/2 - 1/8 = 3/8.

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Filed Under: Mathematical Operations
Exam Prep: AIEEE , Bank Exams , CAT
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Q:

A, B and C invest in a business in the ratio 4 : 5 : 7. C is a sleeping partner, so his share of profits will be half of what it would have been if he were a working partner. If they make Rs 36,000 profit of which 25% is reinvested in the business, how much does B get (in Rs)?

A) 7560 B) 10800
C) 8640 D) 9200
 
Answer & Explanation Answer: B) 10800

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Filed Under: Partnership
Exam Prep: Bank Exams

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Q:

The third proportional of two numbers 9 and 24 is

A) 39 B) 48
C) 72 D) 64
 
Answer & Explanation Answer: D) 64

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

If cot A = n/(n + 1) and cot B = 1/(2n + 1), then what is the value of cot (A + B)?

A) -1 B) 0
C) 1 D) 2
 
Answer & Explanation Answer: A) -1

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Among four boys, age of Ashish is thrice the age of Varun. Age of Arvind is 1/2 of the age of Varun. Amit is 8 years elder to Varun, but 8 years younger to Ashish. Who is the second eldest?

A) Amit B) Ashish
C) Arvind D) Varun
 
Answer & Explanation Answer: A) Amit

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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Q:

In the given figure, a circle touches the sides of the quadrilateral PQRS. The radius of the circle is 9 cm. RSP = SRQ = 60 deg and PQR = QPS = 120 deg. What is the perimeter (in cm) of the quadrilateral?

A) 36√3 B) 24√3
C) 48√3 D) 32
 
Answer & Explanation Answer: C) 48√3

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Filed Under: Simplification
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Q:

A car travelling at an average speed of 72 km/hr takes 9 minutes to travel a certain distance. By how much should it increase its speed (in km/hr) to travel the same distance in 8 minutes?

A) 8 B) 9
C) 7 D) 6
 
Answer & Explanation Answer: B) 9

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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