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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

What is the value of Cot 60°- Sec 45°?

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

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1393
Q:

If secA -­ tanA = x, then the value of x is

A) √[(1 + sinA)/(1 ­- sinA)] B) √[(1­-sinA)/(1+sinA)]
C) (1-­sinA)/(1+sinA) D) (1 + sinA)/(1 -­ sinA)
 
Answer & Explanation Answer: B) √[(1­-sinA)/(1+sinA)]

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams

0 1393
Q:

The reciprocals of the squares of the numbers 11⁄2 and 11⁄3 are in the ratio

A) 64 : 81 B) 8 : 9
C) 81 : 64 D) 9 : 8
 
Answer & Explanation Answer: A) 64 : 81

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

0 1392
Q:

Square of (7 ­- 4x) is

A) 16x2 - 28x + 49 B) 49 -­ 28x ­- 16x2
C) 49 - ­ 56x -­ 16x2 D) 16x2 - 56x + 49
 
Answer & Explanation Answer: D) 16x2 - 56x + 49

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1392
Q:

Points P , Q and R are on a circle such that ∠PQR = 40° and ∠QRP = 60° . Then the subtended angle by arc QR at the centre is

A) 80° B) 120°
C) 140° D) 160°
 
Answer & Explanation Answer: D) 160°

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

0 1392
Q:

A mixture of 50 kg of cement and gravel contains 10% of gravel. How many kg of gravel must be added to make the gravel content 28% in the new mixture?

 

A) 14.5 B) 10.5
C) 12.5 D) 17.5
 
Answer & Explanation Answer: C) 12.5

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams , CAT

3 1391
Q:

Point P (-2, 5) is the midpoint of segment AB. Co-ordinates of A are (-5, y) and B are (x, 3). What is the value of x?

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

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Filed Under: Simplification
Exam Prep: Bank Exams

2 1391
Q:

What is the reflection of the point (-0.5, 6) in the x-axis?

A) (0.5, -6) B) (-6, -0.5)
C) (6, -0.5) D) (-0.5, -6)
 
Answer & Explanation Answer: D) (-0.5, -6)

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Filed Under: Area
Exam Prep: Bank Exams

0 1391