Aptitude and Reasoning Questions

Q:

A man runs round a circular field of radius 50m at the speed of 12 km/hr. What is the time taken by the man to take twenty rounds of the field?

A) 220/7 min B) 110/7 min
C) 90/7 min D) 230/7 min
 
Answer & Explanation Answer: A) 220/7 min

Explanation:

speed = 12 km/h = 12×518=103m/s 

 

distance covered = 20×2×227×50=440007m 

 

time taken  = distance /speed =  440007×310sec=4400×37×160min=2207min 

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31 20252
Q:

Which of the following terms follows the trend of the given list?

 

XYZXZXZ, XZYXZXZ, XZXYZXZ, XZXZYXZ, XZXZXYZ, _______________.

 

A) XZXZXZY   B) YXZXZXZ  
C) XYZXZXZ   D) XZYXZXZ
 
Answer & Explanation Answer: A) XZXZXZY  

Explanation:
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2 20231
Q:

The probability of success of three students X, Y and Z in the one examination are 1/5, 1/4 and 1/3 respectively. Find the probability of success of at least two.

A) 1/4 B) 1/2
C) 1/6 D) 1/3
 
Answer & Explanation Answer: C) 1/6

Explanation:

P(X) = 15, P(Y) =14 , P(Z) = 13

 

Required probability:

 

= [ P(A)P(B){1−P(C)} ] + [ {1−P(A)}P(B)P(C) ] + [ P(A)P(C){1−P(B)} ] + P(A)P(B)P(C)

 

=14*13*45+34*13*15+23*14*15+14*13*15

 

460+360+260+160106016

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19 20191
Q:

Read the following statements and answer the question given below.

U.S. fraternity and sorority members who drink heavily while in school don’t tend to drink after graduation, according to a recent study in Psychology of Addictive Behaviours.

Which of the following would be a logical extension of the above passage?

A) Most men come out of a drinking binge after they cross thirty. B) With graduation comes a sense of responsibility which makes students abstain from such vices.
C) Drinking begins as a group activity and as students leave these groups, the habit of drinking is also left behind. D) Drinking heavily during college days make most students realize the harmful effects of alcoholic drinks.
 
Answer & Explanation Answer: C) Drinking begins as a group activity and as students leave these groups, the habit of drinking is also left behind.

Explanation:

The passage only provides the information that students drink in school but seem to stop binging after they graduate. Option [A] is incorrect as there is no mention in the passage that students
are only males and that they graduate at thirty. Options [B] and [D] are incorrect because it is not mentioned so in the passage. Since the passage talks about student groups - 'fraternity and sorority members' - a logical extension would be that it is these groups that prod students to begin drinking and with the breaking of these groups, the habit is also broken. Hence, [C].

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1 20190
Q:

Which of the following terms follows the trend of the given list?

 

BBAAAAA, ABBAAAA, AABBAAA, AAABBAA, AAAABBA, _______________.

 

A) BBAAAAA   B) AABBAAA  
C) AAAAABB   D) ABBAAAA
 
Answer & Explanation Answer: C) AAAAABB  

Explanation:
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2 20188
Q:

If a mirror is placed on the line MN, then which is the right figure of the given image?

   4)  None

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: B) 2

Explanation:
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0 20179
Q:

Arrange the given words in the sequence in which they occur in the dictionary.

i. Ramification
ii. Rampant
iii. Rapport
iv. Radical

 

A) iii, i, iv, ii B) iv, i, iii, ii
C) iv, i, ii, iii D) iii, iv, i, ii
 
Answer & Explanation Answer: C) iv, i, ii, iii

Explanation:
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1 20135
Q:

How many window coverings are necessary to span 50 windows, if each window covering is 15 windows long?

A) 4 B) 15
C) 3 D) 50
 
Answer & Explanation Answer: A) 4

Explanation:

Given that, 

Number of windows = 50

Each window covering covers 15 windows

=> 50 windows requires 50/15 window coverings

= 50/15 = 3.333

 

Hence, more than 3 window coverings are required. In the options 4 is more than 3. 

 

Hence, 4 window coverings are required to cover 50 windows of each covering covers 15 windows.

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13 20122