Aptitude and Reasoning Questions

Q:

What is the probability of an impossible event?

A) 0 B) -1
C) 0.1 D) 1
 
Answer & Explanation Answer: A) 0

Explanation:

The probability of an impossible event is 0.

The event is known ahead of time to be not possible, therefore by definition in mathematics, the probability is defined to be 0 which means it can never happen.

 

The probability of a certain event is 1.

Report Error

View Answer Report Error Discuss

17 5361
Q:

72 ÷ 52 × 3272 ÷ 52 of 32 ÷ 5.25

A) 3/5 B) 3/6
C) 3/7 D) 3/8
 
Answer & Explanation Answer: C) 3/7

Explanation:

75x321415 ÷ 52510094 ÷ 5251009002100= 37

Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

1 5361
Q:

28 Men and 52 women working together completes a work in 22.5 days. 35 men and 65 women working together on same work will complete it in how many days?

A) 16 B) 18
C) 19 D) 21
 
Answer & Explanation Answer: B) 18

Explanation:

Clearly total persons are increased in  28/35 :: 52/65 = 4:5.

As time is inversely proportional to men, so total time will decrease in the ratio 5:4.

Hence, 22.5 x 4/5 = 18 days.

Report Error

View Answer Report Error Discuss

Filed Under: Time and Work
Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

10 5359
Q:

The length of two superfast trains are 140 mts and 160 mts respectively. If they run at the speed of 60 km/hr and 80 km/hr respectively in opposite direction, find the time in which they will cross each other ? 

A) 7.71 sec B) 10.48 sec
C) 9.36 sec D) 8.45 sec
 
Answer & Explanation Answer: A) 7.71 sec

Explanation:

Given L1 = 140 m

L2 = 160 m

S1 = 60 km/hr

S2 = 80 km/hr

From the question we get,

S1 + S2 = (L1 + L2) / T

=> (60 + 80) 5/18 m/s = 140 + 160/T

=> T = 54/7 = 7.71 sec

Report Error

View Answer Report Error Discuss

Filed Under: Problems on Trains
Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

8 5356
Q:

Choose the alternative that will continue the same pattern and replace 'x' 33,40,37,44,x

A) 41 B) 31
C) 42 D) 39
 
Answer & Explanation Answer: A) 41

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Number Series

4 5354
Q:

If it is possible to make a meaningful word with the second, the seventh, the ninth, the tenth and the thirteenth letters of the word PROCRASTINATED which of the following will be the third letter of that word? If no such word can be formed give 'X' as the answer, if two or three words can be formed give 'Y' as the answer, and if more than three such words can be formed give 'Z' as the answer.

A) S B) Y
C) X D) Z
 
Answer & Explanation Answer: D) Z

Explanation:

Here specified letters are R, S, I, N and E following are the words formed with the help of the above letters:
1. RESIN    2. RISEN  3. RINSE   4. SIREN

Report Error

View Answer Report Error Discuss

Filed Under: Alphabet Test

5 5352
Q:

What is 85 of 352?

A) 21.5% B) 24.14%
C) 23.68% D) 25.47%
 
Answer & Explanation Answer: B) 24.14%

Explanation:

Here 85 of 352 => 85 is what percent in 352

Let p% of 352 is 85

Percentage(%) is generally calculated in the total of 100.

=> p x 352/100  = 85

=> p = 8500/352  = 24.14%

 

Hence, 85 is 24.14% of 352.

 

Report Error

View Answer Report Error Discuss

Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

4 5348
Q:

Two payments of $10,000 each must be made one year and four years from now. If money can earn 9% compounded monthly, what single payment two years from now would be equivalent to the two scheduled payments?

A) 19296 B) 19396
C) 19496 D) 19596
 
Answer & Explanation Answer: A) 19296

Explanation:

The single equivalent payment will be PV + FV.
FV = Future value of $10,000, 12 months later
 $10,000 *(1.0075)/12
 $10,938.07
PV=  Present value of $10,000, 24 months earlier
 $10,000/(1.0075)24
 $8358.31
The equivalent single payment is
$10,938.07 + $8358.31 = $19,296.38

Report Error

View Answer Report Error Discuss

Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

2 5348