6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Fill in the blanks

sinA = _____ x cosA

A) sinA	B) tanA
C) cotA	D) cosA

Answer & Explanation Answer: B) tanA

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

1 49842

Q:

What annual instalment will discharge a debt of Rs 1092 due in 3 years at 12% simple interest?

A) Rs.325	B) Rs.545
C) Rs.560	D) Rs.550

Answer & Explanation Answer: A) Rs.325

Explanation:

Let each instalment be Rs.x .

1st year = [x + (x * 12 * 2)/100]

2nd year = [ x + (x *12 * 1)/100]

3rd year = x

Then, [x + (x * 12 * 2)/100] + [ x + (x *12 * 1)/100] + x =1092

3x + ( 24x/100 ) + ( 12x/100 ) = 1092

336x =109200

Therefore, x = 325

Each instalment = Rs. 325

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Filed Under: Simple Interest
Exam Prep: GRE

204 49818

Q:

Find the next number in the number series?

6, 6, 9, 18, 45, ?

A) 87	B) 99.75
C) 115.5	D) 135

Answer & Explanation Answer: D) 135

Explanation:

The given number series is 6, 6, 9, 18, 45, ?

Here the series follows a pattern that,

6

6 x 1 = 6

6 x 1.5 = 9

9 x 2 = 18

18 x 2.5 = 45

45 x 3 = 135

Hence, the next number in the given number series is 135.

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Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

8 49773

Q:

If ${(x - 7)}^{2} + {(y + 10)}^{2} + {(z - 6)}^{2} = 0$ , then find the value of x + y + z.

A) 1	B) 3
C) 5	D) 7

Answer & Explanation Answer: B) 3

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

1 49684

Q:

In the following question, select the odd word pair from the given alternatives.

A) Net – Badminton	B) Gloves – Boxing
C) Players – Chess	D) Ball – Cricket

Answer & Explanation Answer: B) Gloves – Boxing

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

1 49313

Q:

A tank is 25m long 12m wide and 6m deep. The cost of plastering its walls and bottom at 75 paise per sq m is

A) Rs. 258	B) Rs. 358
C) Rs. 458	D) Rs. 558

Answer & Explanation Answer: D) Rs. 558

Explanation:

Area to be plastered = $[2 (l + b) \times h] + (l \times b)$

= $[2 (25 + 12) \times 6] + (25 \times 12) = 744 s q . m$

Cost of plastering = $744 \times \frac{75}{100} = R s . 558$

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Filed Under: Area
Exam Prep: Bank Exams
Job Role: Bank PO

79 49270

Q:

Given that $(a^{2} + b^{2}) = 60$ , then find the value of ${(a + b)}^{2} + {(a - b)}^{2}$ ?

A) 90	B) 120
C) 140	D) 150

Answer & Explanation Answer: B) 120

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 49249

Q:

Solve the following :

(-4){19 - (-2) x (-8)} = ?

A) 12	B) -140
C) 140	D) -12

Quantitative Aptitude - Arithmetic Ability Questions

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