6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

∆ABC is right angled at B. If cosA = 8/17, then what is the value of cotC ?

A) 15/8	B) 15/17
C) 8/17	D) 17/15

Answer & Explanation Answer: A) 15/8

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

3 74507

Q:

What is the area of this trapezoidal garden? (All measurements are in cm)

A) 60 sq.cm	B) 180 sq.cm
C) 210 sq.cm	D) 240 sq.cm

Answer & Explanation Answer: D) 240 sq.cm

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

23 74249

Q:

What will be the day of the week 15th August, 2010?

A) Sunday	B) Saturday
C) Wednesday	D) Monday

Answer & Explanation Answer: A) Sunday

Explanation:

15th August, 2010 = (2009 years + Period 1.1.2010 to 15.8.2010)

Odd days in 1600 years = 0

Odd days in 400 years = 0

9 years = (2 leap years + 7 ordinary years) = (2 x 2 + 7 x 1) = 11 = 4 odd days.

Jan. Feb. Mar. Apr. May. Jun. Jul. Aug.

(31 + 28 + 31 + 30 + 31 + 30 + 31 + 15) = 227 days = (32 weeks + 3 days) = 3 odd days.

Total number of odd days = (0 + 0 + 4 + 3) = 7 = 0 odd days.

Given day is Sunday

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Filed Under: Calendar

551 74199

Q:

Calculate the area (in cm2) of a circle whose diameter is 7 cm.

A) 38.5	B) 77
C) 32.5	D) 65

Answer & Explanation Answer: A) 38.5

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

0 73998

Q:

The average of five consecutive odd numbers is 61. What is the difference between the highest and lowest numbers :

A) 4	B) 8
C) 12	D) 16

Answer & Explanation Answer: B) 8

Explanation:

Let the numbers be x, x + 2, x + 4, x + 6 and x + 8.

Then [x + (x + 2) + (x + 4) + (x + 6) + (x + 8) ] / 5 = 61.

or 5x + 20 = 305 or x = 57.

So, required difference = (57 + 8) - 57 = 8

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Filed Under: Average

237 73930

Q:

If log 2 = 0.3010 and log 3 = 0.4771, the values of log₅ 512 is

A) 2.875	B) 3.875
C) 4.875	D) 5.875

Answer & Explanation Answer: B) 3.875

Explanation:

ANS: log₅512 = log512/log5 = $\frac{\log 2^{9}}{\log (10 / 2)}$ = $\frac{9 \log 2}{\log 10 - \log 2}$ = $\frac{9 * 0.3010}{1 - 0.3010}$ =2.709/0.699 =2709/699 =3.876

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Filed Under: Logarithms
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Job Role: Bank PO

211 73676

Q:

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

(A) 16-28

(B) 20-30

(C) 30-40

(D) 40-50

A) A	B) B
C) C	D) D

Answer & Explanation Answer: A) A

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 73592

Q:

Find the approximate value of ? in ${(14.998)}^{3} = ?$

A) 3573	B) 4096
C) 3378	D) 3374

Quantitative Aptitude - Arithmetic Ability Questions

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