Aptitude and Reasoning Questions

Q:

Group the given figures into three classes using each figure only once.

   9_(1)1484718122.png image

A) 1,5,9 ; 2,7,8 ; 3,4,6 B) 2,4,9 ; 6,7,8 ; 1,3,5
C) 3,7,8 ; 4,5,9 ; 1,2,6 D) 1,5,6 ; 4,7,8 ; 2,3,9
 
Answer & Explanation Answer: B) 2,4,9 ; 6,7,8 ; 1,3,5

Explanation:

2, 4, 9 have two similar elements intersecting each other.
6, 7, 8 have two different elements one placed inside the other.
1, 3, 5 have two different elements intersecting each other.

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Filed Under: Grouping of Images
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Q:

A research team of 6 people is to be formed from 10 chemists,5 politicians, 8 economists and 15 biologists.How many teams have atleast 5 chemists?

A) 7350 B) 6400
C) 6379 D) 7266
 
Answer & Explanation Answer: D) 7266

Explanation:

10C5 x 28C1 x 10C6 = 7266

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Q:

Out of 6 green ball, 4 blue ball, in how many ways we selectone or more balls ?

A) 42 B) 34
C) 31 D) 22
 
Answer & Explanation Answer: B) 34

Explanation:

7 × 5 = 35

35 – 1 = 34

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Q:

Two angles whose sum is 180 degrees are

A) Complimentary angles B) Supplementary angles
C) Alternate angles D) None of the above
 
Answer & Explanation Answer: B) Supplementary angles

Explanation:

Two angles whose sum is 180 degrees are called supplementary angles.

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Filed Under: Arithmetical Reasoning
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Q:

There is a 3 digited number. 3rd digit is the square root of the 1st digit. 2nd digit is the sum of 1st and 3rd. And that number is divisible by 2,3,6,7. What is that number?

A) 121 B) 943
C) 462 D) None
 
Answer & Explanation Answer: C) 462

Explanation:

Assume that the number is taken as XYZ.
Condition 1 => Z = sq.root(x) => Possible digits of X is 1,4,9
Condition 2 => Y = X + Z
X Y Z
1 2 1
4 6 2
9 12 3 => (wrong because it is 4 digit.)

and 121 is not divisible by 2

The answer is 462.

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Filed Under: Numbers
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Q:

Rearrange the jumbled letters to make a meaningful word and then select the one which is different.

A) DRE B) LUBE
C) GROANE D) KNIP
 
Answer & Explanation Answer: C) GROANE

Explanation:
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Filed Under: Logical Sequence of Words
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Q:

Three athletes can complete one round around a circular field in 16, 24 and 36 min respectively. They start running together at same instant then after how much time they will meet to each other for first time ?

A) 2 hrs 24 min B) 2 hrs 44 min
C) 1 hrs 24 min D) 1 hrs 24 min
 
Answer & Explanation Answer: A) 2 hrs 24 min

Explanation:

Given that three athletes can complete one round around a circular field in 16, 24 and 36 min respectively.

Now, required time after which they met for the first time = LCM of (16, 24 & 36) min

Now, LCM of 16, 24, 36 = 144 minutes = 2 hrs 24 min.

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Filed Under: Time and Work
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Q:

If 27th December 2009 was a Thursday, then what day of the week was it on 1st March 2010?

A) Thursday B) Friday
C) Sunday D) Monday
 
Answer & Explanation Answer: B) Friday

Explanation:
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Filed Under: Calendar
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