6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What is the value of $Cot 45 ° + 1 / 3 Cosec 60 °$ ?

A) √3 + 2	B) (9 + 2√3)/9
C) √3	D) (2√2 + 3)/√6

Answer & Explanation Answer: B) (9 + 2√3)/9

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

The mean of marks secured by 65 students in division A of class X is 54, 30 students of division B is 50 and that of 55 students of division C is 48. Find the mean of marks of the students of three divisions of Class X.

A) 50.3	B) 49.6
C) 51	D) 52.4

Answer & Explanation Answer: C) 51

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

A man walks at a speed of 3 kmph. He doubles his speed after reaching exactly half way. He walks for 5 hours in all. What is the total distance travelled by him?

A) 19 km	B) 15 km
C) 12 km	D) 20 km

Answer & Explanation Answer: D) 20 km

Explanation:

Let total distance be 2D.

He walks half distance i.e, (2D/2) = 'D' distance with 3 kmph and

The next 'D' with 6 kmph.

Using formula,

Time = Distance/speed

(D/3) + (D/6) = 5

D =10 ,

Hence, Total distance 2D = 20 kms.

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

20 kg of a mixture of wheat and husk contains 5% husk. How many kg more of husk must be added to make the husk content 20% in the new mixture?

A) 2.75	B) 3.75
C) 4.75	D) 5.75

Answer & Explanation Answer: B) 3.75

Explanation:

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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Q:

An alloy contains copper and tin in the ratio 3 : 2. If 250 gm of copper is added to this alloy then the copper in it becomes double the quantity of tin in it. What is the amount (in gm) of tin in the alloy?

A) 250	B) 750
C) 1000	D) 500

Answer & Explanation Answer: D) 500

Explanation:

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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Q:

(1 + sinA)/(1 - sinA) is equal to?

A) (cosecA - 1)/(cosecA + 1)	B) (cosecA + 1)/(cosecA - 1)
C) (secA + 1)/(secA - 1)	D) (secA - 1)/(secA + 1)

Answer & Explanation Answer: B) (cosecA + 1)/(cosecA - 1)

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: AIEEE , Bank Exams , CAT

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Q:

Curved surface area of a cylinder is 528 sq cm. If circumference of its base is 44 cm, find the height of the cylinder?

A) 12 cm	B) 24 cm
C) 36 cm	D) 6 cm

Answer & Explanation Answer: A) 12 cm

Explanation:

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

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Q:

O is the orthocentre of $∆ ABC$ , and if ∠BOC = 110° then ∠BAC will be

A) 110°	B) 70°
C) 100°	D) 90°

Quantitative Aptitude - Arithmetic Ability Questions

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