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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

What is the value of (sin45 - √3) ?

 

A) (1-√6)/√2   B) (4-√3)/2√3  
C) -1/2√3   D) (2-√3)/2√3
 
Answer & Explanation Answer: A) (1-√6)/√2  

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 45373
Q:

When 0.232323.... is converted into a fraction , then the result is 

 

A) 1/5 B) 2/9
C) 23/99 D) 23/100
 
Answer & Explanation Answer: C) 23/99

Explanation:

0.232323...=0.23 =2399

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Filed Under: Decimal Fractions

73 45362
Q:

Find the odd man out of the series given

8, 16, 20, 36, 68

A) 68 B) 36
C) 20 D) 16
 
Answer & Explanation Answer: D) 16

Explanation:

The given number series is 8, 16, 20, 36, 68

8

8 x 2 - 4 = 12 (NOT 16)

12 x 2 - 4 = 20

20 x 2 - 4 = 36

36 x 2 - 4 = 68

 

Hence, the odd man in the given series is 16.

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Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

16 45358
Q:

Product of two co-prime numbers is 117. Their L.C.M  should be

A) 1 B) 117
C) Equal to their H.C.F D) cannot be calculated
 
Answer & Explanation Answer: B) 117

Explanation:

H.C.F of co-prime numbers is 1. So, L.C.M = 117/1 =117

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Filed Under: HCF and LCM

122 45307
Q:

1 4 27 Sequence ...

Find the next two numbers in the above sequnce?

A) 256 & 3125 B) 3125, 46656
C) 46656, 859587 D) None
 
Answer & Explanation Answer: A) 256 & 3125

Explanation:

The above given sequence follows a pattern that,

 

122 = 433 = 2744 = 25655 = 312566 = 46656and so on...

Therefore, the next two numbers in the given sequence is 256 & 3125.

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Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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6 45163
Q:

Simplify : (27)-23

 

A) 1/18 B) 9
C) 1/9 D) 18
 
Answer & Explanation Answer: C) 1/9

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

1 45132
Q:

Given w = -2, x = 3, y = 0 & z = -1/2, find the value of w2(z2 + y2)

 

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

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

1 45077
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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Filed Under: Permutations and Combinations

90 45066