Quantitative Aptitude - Arithmetic Ability Questions

Q:

12 people at a party shake hands once with everyone else in the room.How many handshakes took place?

A) 72 B) 66
C) 76 D) 64
 
Answer & Explanation Answer: B) 66

Explanation:

There are 12 people, so this is our n value.

 

So, 12C21= 66

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Q:

The length and breadth of a rectangle are 15 cm and 8 cm respectively. Calculate its perimeter (in cm).

 

A)  46 B) 92
C)  35 D)  70
 
Answer & Explanation Answer: A)  46

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

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Q:

If a/b = 1/4, b/c = 1/8 and a = 2 then the value of c is -

 

A) 8 B) 16
C) 32 D) 64
 
Answer & Explanation Answer: D) 64

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

In the following question, select the odd word pair from the given alternatives.

 

A) Vehicle – Car B) Scooter – Vehicle
C) Truck – Vehicle D) Bus – Vehicle
 
Answer & Explanation Answer: A) Vehicle – Car

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

x and y are integers

x + y < 11 , and x > 6

What is the smallest possible value of x - y ?

A) 1 B) 24
C) 4 D) -2
 
Answer & Explanation Answer: C) 4

Explanation:

The smallest value will be obtained by giving x the smallest possible value while y gets the largest possible value. The smallest value for x = 7. This means that y will have to be less than or equal to 3 (so that x + y <11), but we want the largest value of y which is 3.

The difference, x - y will be 4.

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Filed Under: Problems on Numbers
Exam Prep: GRE

4 44883
Q:

In the following question, select the odd word pair from the given alternatives.

 

A) Car – Road B) Water – Ship
C) Track – Train D) Sky – Aeroplane
 
Answer & Explanation Answer: A) Car – Road

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

If 2 tables and 3 chairs cost Rs, 3500 and 3 tables and 2 chairs cost Rs. 4000, then how much does a table cost ?

A) 500 B) 1000
C) 1500 D) 2000
 
Answer & Explanation Answer: B) 1000

Explanation:

Let the cost of a table and that of a chair be Rs. x and Rs, y respectively.

Then, 2x + 3y = 3500 ...(i)

and 3x + 2y = 4000 .....(ii)

solving (i) and (ii) we get x = 1000, y = 500 

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97 44861
Q:

Mark the odd man out in the given number series

24.3, 23.1, 20.7, 17.1, 12.4

A) 12.4 B) 17.1
C) 20.7 D) 23.1
 
Answer & Explanation Answer: A) 12.4

Explanation:

The given series 24.3, 23.1, 20.7, 17.1, 12.4 follows a pattern that

24.3

24.3 - 1.2 = 23.1

23.1 - 2.4 = 20.7

20.7 - 3.6 = 17.1

17.1 - 4.8 = 12.3 not 12.4

 

Hence, the odd man or odd number in the given series is 12.4

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Filed Under: Odd Man Out
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