Quantitative Aptitude - Arithmetic Ability Questions

Q:

From a point on a bridge across the river, the angles of depression of the banks on opposite sides of the river are 30° and 45° respectively. If the bridge is at a height of 2.5m from the banks, then the width of the river is (take √3 = 1.732)

A) 5.83m B) 6.83m
C) 5.76m D) 6.87m
 
Answer & Explanation Answer: B) 6.83m

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Q:

Smaller diagonal of a rhombus is equal to length of its sides. If length of each side is 6 cm, then what is the area (in sq.cm) of an equilateral triangle whose side is equal to the bigger diagonal of the rhombus?

A) 18√3 B) 27√3
C) 32√3 D) 36√3
 
Answer & Explanation Answer: B) 27√3

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

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Q:

If the volume of a cylinder is 385 cubic cm and height is 10 cm, find its radius?

A) 7 cm B) 10.5 cm
C) 3.5 cm D) 1.75 cm
 
Answer & Explanation Answer: C) 3.5 cm

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

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Q:

If in ΔABC, DE ||BC, AB = 7.5cm, BD = 6cm and DE = 2cm, then the length of BC in cm is

A) 6 B) 8
C) 10 D) 10.5
 
Answer & Explanation Answer: C) 10

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

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Q:

A mixture contains liquid A and liquid B in the ratio of 5 : 4. If 2 litres of liquid B is added to it, then the ratio of liquid A and liquid B becomes 7 : 6. What is the quantity (in litres) of liquid A in the mixture?

 

A) 32 B) 35
C) 40 D) 42
 
Answer & Explanation Answer: B) 35

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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Q:

Neeraj's earning was decreased by 60% and after that subsequently increased by 60%. Find the final loss % on his earnings?

A) 12% B) 36%
C) 4% D) 5%
 
Answer & Explanation Answer: B) 36%

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

If  cos2θ-sinθ = 1/4, then what is the value of sin θ?

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

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Q:

Select the odd word/letters/number/number pair from the given alternatives.

A) 176 B) 263
C) 132 D) 297
 
Answer & Explanation Answer: B) 263

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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