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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

The two equations x - 4y = 0 and 4x + 3y = 19 have a solution (a, b). Find the value of aba + 4b.

 

A) 1/4 B) 1/2
C) 1 D) 23
 
Answer & Explanation Answer: B) 1/2

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Q:

If cosθ = 4/5, then (secθ + cosecθ) =

 

A) 7/5 B) 15/12
C) 35/12 D) 12/5
 
Answer & Explanation Answer: C) 35/12

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Q:

ΔXYZ is right angled at Y. If sinX = 4/5, then what is the value of cosZ ?

 

A) 3/4 B) 5/3
C) 4/5 D) 4/3
 
Answer & Explanation Answer: C) 4/5

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Q:

sin 30°1 + cos30° + 1 + cos30°sin30° = ?

 

 

A) 4 B) 3
C) 1 D) 2
 
Answer & Explanation Answer: A) 4

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Q:

Find the range of the data 9, 5, 9, 3, 4, 7, 8, 4, 8, 9, 5, 9.

 

A) 3 B) 5
C) 6 D) 4
 
Answer & Explanation Answer: C) 6

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Q:

∆DEF is right angled at E. If secD = 17/8, then what is the value of cosF?

 

A) 15/17   B) 15/8  
C) 8/17   D) 17/15
 
Answer & Explanation Answer: A) 15/17  

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Q:

Find the next number in the given number series?

35, 36, 55, 111, ?

A) 278.5 B) 264.5
C) 212.5 D) 202
 
Answer & Explanation Answer: A) 278.5

Explanation:

The given number series is 35, 36, 55, 111, ?

35

35 x 1 + 1 = 36

36 x 1.5 + 1 = 55

55 x 2 + 1 = 111

111 x 2.5 + 1 = 278.5

 

Hence, the next number in the given number series is 278.5.

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Q:

152, 124, 96, 69, 40

Find the odd man out?

A) 124 B) 96
C) 69 D) 40
 
Answer & Explanation Answer: C) 69

Explanation:

The given number series is 152, 124, 96, 69, 40

152

152 - 28 = 124

124 - 28 = 96

96 - 28 = 68 (not 69)

68 - 28 = 40

 

Hence, the odd man in the given number series is 69.

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