Aptitude and Reasoning Questions

Q:

Three taps A,B and C can fill a tank in 12,15 and 20 hours respectively. If A is open all the time and B ,C are open for one hour each alternatively, the tank will be full in:

A) 6 hrs B) 20/3 hrs
C) 7 hrs D) 15/2 hrs
 
Answer & Explanation Answer: C) 7 hrs

Explanation:

A+B's 1 hour work=112+115=960=320

A+C's 1 hour work=112+120=860=215  

 

part filled in 2 hrs=320+215=1760  

 

part filled in 6 hrs=3*1760=1720  

 

 remaining part =1-1720=320  

 

Now, it is  the turn of A and B (3/20) part is filled by A and B in 1 hour.

Therefore, Total  time taken to fill the tank =(6+1)hrs= 7 hrs

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Filed Under: Pipes and Cistern

72 23381
Q:

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

 

ABCABABAB, ABABCABAB, ABABABCAB, ABABABABC, ACBABABAB, _______________.

 

A) ABABCABAB   B) ABCABABAB  
C) ABACBABAB   D) ABABACBAB
 
Answer & Explanation Answer: C) ABACBABAB  

Explanation:
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Filed Under: Alphabet Test
Exam Prep: Bank Exams

6 23379
Q:

Direction: What should come in the place of question mark (?) in the following number series?

2, 3, 6, 15, 45, ?

A) 90 B) 135
C) 157.5 D) 200
 
Answer & Explanation Answer: C) 157.5

Explanation:

The pattern followed is *1.5 , * 2 , *2.5 , *3 , *3.5

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Filed Under: Numbers
Exam Prep: AIEEE , Bank Exams , GATE

0 23373
Q:

813  967  429  295  648

If the positions of the second and third digits in each of the numbers are interchanged , which of the following will be the sum of the sum of the three digits of the highest number?

A) 12 B) 15
C) 16 D) 22
 
Answer & Explanation Answer: D) 22

Explanation:
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Filed Under: Verbal Reasoning - Mental Ability
Exam Prep: Bank Exams
Job Role: Bank PO

4 23373
Q:

If Feb 12th,1986 falls on Wednesday then Jan 1st,1987 falls on which day?

A) Wednesday B) Tuesday
C) Thursday D) Friday
 
Answer & Explanation Answer: C) Thursday

Explanation:

First,we count the number of odd days for the left over days in the given period.

Here,given period is 12.2.1986 to 1.1.1987

Feb Mar Apr May June July  Aug Sept Oct Nov Dec Jan

16   31    30  31   30    31   31   30   31  30   31   1 (left days)

2 + 3 + 2 + 3 + 2 + 3 + 3 + 2 + 3 + 2 + 3 + 1(odd days) = 1 odd day

So,given day Wednesday + 1 = Thursday is the required result.

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Filed Under: Calendar

146 23368
Q:

Which of the following represents the sides of an acute angled triangle?

 

A) 6, 9, 16   B) 7, 8, 10  
C) 5, 12, 13   D) None of these
 
Answer & Explanation Answer: B) 7, 8, 10  

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

1 23365
Q:

In a certain code language STUDENT is written as TUTDNES.How will SOURCES be writte in that code language?

A) SOURCES B) SUORECS
C) SRUOCES D) SOURSEC
 
Answer & Explanation Answer: B) SUORECS

Explanation:

- There are 7 letters in the word

- The middle letter has been left intact

- The first and the last letters  of the word have interchanged their position. Similarly, the second and the third letters and the fifth and sixth letters have interchanged their position.

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Filed Under: Coding and Decoding

141 23357
Q:

Find the first negative term of the below A.P.

 

129, 120, 111, 102, ...

 

 

A) 14th term B) 16th term
C) 15th term D) 13th term
 
Answer & Explanation Answer: B) 16th term

Explanation:
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Filed Under: Number Series
Exam Prep: Bank Exams

2 23353