Aptitude and Reasoning Questions

Q:

Insert the missing number.

2, 4, 12, 48, 240, (....)

A) 960 B) 1440
C) 1080 D) 1920
 
Answer & Explanation Answer: B) 1440

Explanation:

Go on multiplying the given numbers by 2, 3, 4, 5, 6.

So, the correct next number is 1440.

Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out

112 133673
Q:

A clock is set right at 8 a.m. The clock gains 10 minutes in 24 hours will be the true time when the clock indicates 1 p.m. on the following day?

A) 48 min. past 12. B) 46 min. past 12.
C) 45 min. past 12. D) 47 min. past 12.
 
Answer & Explanation Answer: A) 48 min. past 12.

Explanation:

Time from 8 a.m. on a day to 1 p.m. on the following day = 29 hours. 

24 hours 10 min. of this clock = 24 hours of the correct clock. 

1456 hrs of this clock = 24 hours of the correct clock. 

29 hours of this clock = 24*6145*29 hrs of the correct clock 

= 28 hrs 48 min of the correct clock. 

Therefore, the correct time is 28 hrs 48 min. after 8 a.m. 

This is 48 min. past 12.

Report Error

View Answer Report Error Discuss

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

708 133435
Q:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

If the first half of English alphabet is reversed and the second half of the English alphabet is left undisturbed then which letter will be 10th to the left of 16th letter from the left?

A) H B) F
C) Z D) U
 
Answer & Explanation Answer: A) H

Explanation:

If the first half of the English alphabet is reversed and the remaining part has been left undisturbed, then it becomes very easy to find out the required letters, if required letters come in the first half. According to the question, 10th to the left of 16th letter from the left = (16 - 10 =) 6th letter from the left in new series.

=>  6th letter from the left in new series = (13 + 1 - 6=) 8th letter from the left in the original series, i.e H.

Report Error

View Answer Report Error Discuss

Filed Under: Alphabet Test

88 133086
Q:

8 litres are drawn from a cask full of wine and is then filled with water. This operation is performed three more times. The ratio of the quantity of wine now left in cask to that of the water is 16 : 65. How much wine the cask hold originally?

A) 18 litres B) 24 litres
C) 32 litres D) 42 litres
 
Answer & Explanation Answer: B) 24 litres

Explanation:

Let the quantity of the wine in the cask originally be x litres

 
Then, quantity of wine left in cask after 4 operations =x1-8x4litres

 

x1-8x4x = 1681  

 

 1-8x4=234 

 

x=24

Report Error

View Answer Report Error Discuss

Filed Under: Alligation or Mixture

575 133075
Q:

A trader mixes 26 kg of rice at Rs. 20 per kg with 30 kg of rice of other variety at Rs. 36 per kg and sells the mixture at Rs. 30 per kg. His profit percent is:

A) No profit, no loss B) 5%
C) 8% D) 10%
 
Answer & Explanation Answer: B) 5%

Explanation:

C.P. of 56 kg rice = Rs. (26 x 20 + 30 x 36) = Rs. (520 + 1080) = Rs. 1600.

 

S.P. of 56 kg rice = Rs. (56 x 30) = Rs. 1680.

 

Gain =(80/1600*100) % = 5%

Report Error

View Answer Report Error Discuss

Filed Under: Profit and Loss

1017 132064
Q:

A bag contains 6 white and 4 black balls .2 balls are drawn at random. Find the probability that they are of same colour.

A) 1/2 B) 7/15
C) 8/15 D) 1/9
 
Answer & Explanation Answer: B) 7/15

Explanation:

Let S be the sample space

 

Then n(S) = no of ways of drawing 2 balls out of (6+4) =10C2 10 =10*92*1 =45

 

Let E = event of getting both balls of same colour

 

Then,n(E) = no of ways (2 balls out of six) or (2 balls out of 4)

 

                =6C2+4C2 = 6*52*1+4*32*1= 15+6 = 21

 

Therefore, P(E) = n(E)/n(S) = 21/45 = 7/15

Report Error

View Answer Report Error Discuss

Filed Under: Probability

763 130795
Q:

What is the next number in series?

10, 9, 60, 90, 70, 66, ?

A) 73 B) 19
C) 96 D) 22
 
Answer & Explanation Answer: C) 96

Explanation:

ten = 3(number of letters)
nine = 4(number of letters)
sixty = 5(number of letters)
ninety = 6(number of letters)
seventy = 7(number of letters)
sixtysix = 8(number of letters)
ninetysix=96(number of letters)

Then, likwise choose the number which has 9 letters in its Spelling.

Report Error

View Answer Report Error Discuss

Filed Under: Number Series
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Bank Clerk , Bank PO

63 129823
Q:

Insert the missing number.

8, 7, 11, 12, 14, 17, 17, 22, (....)

A) 20 B) 22
C) 24 D) 27
 
Answer & Explanation Answer: A) 20

Explanation:

There are two series (8, 11, 14, 17, 20) and (7, 12, 17, 22) increasing by 3 and 5 respectively.

Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out

116 125079