Quantitative Aptitude - Arithmetic Ability Questions

Q:

If one root of the equation Ax2 +Bx + C = 0 is two and a half times the others, then which of the following is TRUE?

A) 7B2 = 3 CA B) 7B2 = 4 CA
C) 7B2 = 36 CA D) 10B2 = 49 CA
 
Answer & Explanation Answer: D) 10B2 = 49 CA

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

0 1387
Q:

A thief is stopped by a policeman from a distance of 450 metres. When the policeman starts the chase, the thief also starts running. Assuming the speed of the thief as 7 km/h and that of policeman as 12 km/h, how far the thief would have run, before he is over­ taken?

A) 504 metres B) 756 metres
C) 378 metres D) 630 metres
 
Answer & Explanation Answer: D) 630 metres

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Time and Distance
Exam Prep: Bank Exams

3 1386
Q:

Study the information carefully to answer the following questions: An urn contains 5 red, 3 green, 2 blue and 4 yellow marbles. If three marbles are picked at random, what is the probability that one is green and two are yellow?

A) 3/14 B) 2/91
C) 9/182 D) 7/545
 
Answer & Explanation Answer: C) 9/182

Explanation:

Required probability = 3×6364=9182

Report Error

View Answer Report Error Discuss

4 1386
Q:

Ram's father is twice as old as Ram is. Eight years ago the age of Ram's father was 2.5 times his age. What is Ram's current age?

A) 22 yrs B) 25 yrs
C) 24 yrs D) 23 yrs
 
Answer & Explanation Answer: C) 24 yrs

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Problems on Ages
Exam Prep: Bank Exams

1 1385
Q:

What is the value of [sin (90 – A) + cos (180 – 2A)]/[cos (90 – 2A) + sin (180 – A)]?

A) sin (A/2) cos A B) cot (A/2)
C) tan (A/2) D) sin A cos (A/2)
 
Answer & Explanation Answer: C) tan (A/2)

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

0 1385
Q:

The measures of the four angles of a quadrilateral are in the ratio 1:2:3:4. What is the measure of the biggest angle?

A) 36° B) 144°
C) 72° D) 108°
 
Answer & Explanation Answer: B) 144°

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Area
Exam Prep: Bank Exams

0 1385
Q:

If x – 3 + [1/(x – 3)] = 4, what is the value of [(x  3)3+ [1/(x  3)3]?

A) 14 B) 18
C) 52 D) 76
 
Answer & Explanation Answer: C) 52

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

0 1385
Q:

The line passing through (-2,5) and (6,b) is perpendicular to the line 20x + 5y = 3. Find b?

A) -7 B) 4
C) 7 D) -4
 
Answer & Explanation Answer: C) 7

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

1 1385