6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

A sum was put at simple interest at a certain rate for 3 years. Had it been put at 2% higher rate, it would have fetched Rs 360 more. Find the sum.

A) Rs.4000	B) Rs.9000
C) Rs.5000	D) Rs.6000

Answer & Explanation Answer: D) Rs.6000

Explanation:

Let sum = P and original rate = R. Then

[(P * (R+2) * 3)/100] - [ (P * R * 3)/100] = 360

3P*(R+2) - 3PR = 36000

3PR + 6P - 3PR = 36000

6P = 36000

P = 6000

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Filed Under: Simple Interest
Exam Prep: GRE
Job Role: Bank PO

70 41463

Q:

Simple interest on a certain sum is 16/25 of the sum. Find the rate percent and time, If both are numerically equal.

A) Rate = 7% and Time = 7 years.	B) Rate = 8% and Time = 8 years.
C) Rate = 6% and Time = 6 years.	D) Rate = 5% and Time = 5 years.

Answer & Explanation Answer: B) Rate = 8% and Time = 8 years.

Explanation:

Let sum = X. Then S.I = 16x/25

Let rate = R% and Time = R years.

Therefore, (x * R * R)/100 = 16x/25 => R = 40/5 = 8

Therefore, Rate = 8% and Time = 8 years.

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Filed Under: Simple Interest
Exam Prep: GRE

112 41333

Q:

Calculate the value of $\frac{(59881 \times 59881 - 49681 \times 49681)}{10200}$ ?

A) 110956	B) 109562
C) 109652	D) 109662

Answer & Explanation Answer: B) 109562

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 41329

Q:

In the given figure, if QR/XY = 14/9 and PY = 18 cm, then what is the value (in cm) of PQ?

A) 28	B) 18
C) 21	D) 24

Answer & Explanation Answer: A) 28

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

2 41292

Q:

In a 100 m race, A can give B 10 m and C 28 m. In the same race B can give C

A) 18 m	B) 20 m
C) 27 m	D) 9m

Answer & Explanation Answer: B) 20 m

Explanation:

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Filed Under: Races and Games

35 41259

Q:

Find the odd man out of the following number series?

222, 271, 308, 332, 348, 357

A) 271	B) 308
C) 332	D) 348

Answer & Explanation Answer: B) 308

Explanation:

Here the given series 222, 271, 308, 332, 348, 357 follows a pattern that

222

222 + 49 271

271 + 36 = 307 (NOT 308)

307 + 25 = 332

332 + 16 = 348

348 + 9 = 357

Hence, the odd man in the fiven number series is 308.

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

1 41237

Q:

What is the value of 88% of 1125 + 20% of 425?

A) 1025	B) 1125.2
C) 1075	D) 1055

Answer & Explanation Answer: C) 1075

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

5 41222

Q:

What is the value of 'x' in $2 \sqrt{3 x} - 5 \sqrt{27 x} + \sqrt{108 x} = - 21 ?$

A) 0.33	B) 1
C) 3	D) 9

Quantitative Aptitude - Arithmetic Ability Questions

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