6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Divide 13,680 in three parts such that 1st part is 3/5th of the third part and the ratio between 2nd and 3rd part is 4:7. How much is the first part?

A) 3780	B) 6300
C) 3600	D) 4800

Answer & Explanation Answer: A) 3780

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

A man travels 430 kilometres in, partly by rail and partly by steamer. He spends 10 hours more time on steamer. If the velocity of the steamer is 25 km/hr and the velocity of rail is 65 km/hr, how much distance does he cover by steamer?

A) 360 km	B) 300 km
C) 450 km	D) 540 km

Answer & Explanation Answer: B) 300 km

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

The average of five consecutive even numbers is 40. What is the value of smallest of these numbers?

A) 35	B) 36
C) 44	D) 48

Answer & Explanation Answer: B) 36

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

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Q:

If l + m + n = 9 and $l^{2} + m^{2} + n^{2} = 31$ , then the value of lm + mn + nl will be

A) 22	B) 50
C) 25	D) -25

Answer & Explanation Answer: C) 25

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Filed Under: Simplification

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Q:

Angle of Elevation means

Answer

In Heights and Distances,

The angle of elevation of an object is the angle between the horizontal and the line of sight that is the line from the object to the observer's eye.

Workspace

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Subject: Height and Distance Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

If a--b = 4 and ab = 45, find the value of $a^{3} - b^{3}$

A) 604	B) 370
C) 253	D) 199

Answer & Explanation Answer: A) 604

Explanation:

${(a - b)}^{2} = a^{2} + b^{2} - 2 ab \Rightarrow 16 = a^{2} + b^{2} - 90 \Rightarrow a^{2} + b^{2} = 106 a^{3} - b^{3} = (a - b) (a^{2} + b^{2} + ab) \Rightarrow a^{3} - b^{3} = 4 X (106 + 45) \Rightarrow a^{3} - b^{3} = 4 X 151 \Rightarrow a^{3} - b^{3} = 604$

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If a/b = c/d = e/f = 2/5, then what is (5a + 3c + 2e) : (5b + 3d + 2f)?

A) 2 : 5	B) 3 : 5
C) 16 : 25	D) 20:33

Answer & Explanation Answer: A) 2 : 5

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

A cloth merchant has announced 25% rebate in prices. If one needs to have a rebate of Rs. 40, then how many metres of cloth costing Rs. 32 per metre he should purchase

A) 6m	B) 5m
C) 10m	D) 7m

Quantitative Aptitude - Arithmetic Ability Questions

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