6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Both S.I. and C.I. is calculated with a similar rate of 10% per annum on a sum of rupees. If C.I. is calculated yearly for two years, then for what period must S.I. be evaluated such that S.I. = C.I.?

A) 4.2 years	B) 2.1 years
C) 1.1 years	D) 1.4 years

Answer & Explanation Answer: B) 2.1 years

Explanation:

Let time period of S.I. be T years.

Then for a principal amount, say P,

ATQ, as, S.I. = C.I. for rate =10%p.a. and

time for C.I. = 2(P x 10 x T)/100 = P{[ (100+10)/100 ]2-1}T/10 = [ 110/100 ]2–1 = [(11/10)2–1] = (121-100)/100T/10 = 21/100T = 21/10 = 2.1 years

Report Error

View Answer Report Error Discuss

Filed Under: Simple Interest
Exam Prep: Bank Exams
Job Role: Bank PO , Bank Clerk

1 1947

Q:

If A% of A is 196, then what is the value of A?

A) 170	B) 160
C) 120	D) 140

Answer & Explanation Answer: D) 140

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Percentage
Exam Prep: Bank Exams

7 1945

Q:

If $a^{2} \sec^{2} x - b^{2} \tan^{2} x = c^{2}$ then the value of $\sec^{2} x + \tan^{2} x$ is equal to (assume b2 ≠ a2 )

A) b2-a2+2c2b2+a2	B) b2+a2-2c2b2-a2
C) b2-a2-2c2b2+a2	D) b2-a2b2+a2+2c2

Answer & Explanation Answer: B) b2+a2-2c2b2-a2

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

0 1945

Q:

Choose the word is least like the other words in the group

A) Shoulder	B) Foot
C) Finger	D) Elbow

Answer & Explanation Answer: B) Foot

Explanation:

All except foot are part of hands.

Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 1944

Q:

What is the sum of first 40 terms of 1 + 3 + 4 + 5 + 7 + 7 + 10 + 9 + ....?

A) 1010	B) 1115
C) 1030	D) 1031

Answer & Explanation Answer: C) 1030

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Numbers
Exam Prep: Bank Exams

5 1944

Q:

If the radius of a circle is increased by 31% its area increases by ______.

A) 62 percent	B) 31 percent
C) 35.805 percent	D) 71.61 percent

Answer & Explanation Answer: D) 71.61 percent

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Percentage
Exam Prep: Bank Exams , CAT

1 1944

Q:

$∆ ABC$ is right angled at B. BD is an altitude. AD = 4 cm and DC = 9 cm. What is the value of BD (in cm)?

A) 5	B) 4.5
C) 5.5	D) 6

Answer & Explanation Answer: D) 6

Explanation:

Report Error

View Answer Report Error Discuss

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

0 1944

Q:

The mean of 20 observations is 19. One more observation is included and the new mean becomes 20. The 21st observation is

A) 20	B) 30
C) 40	D) 42

Quantitative Aptitude - Arithmetic Ability Questions

Quick Links