Aptitude and Reasoning Questions

Q:

Use each of the following figures only once and form three groups. The three groups so formed are

 

 

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

Explanation:
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Filed Under: Arithmetical Reasoning
Exam Prep: Bank Exams

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Q:

If two dice are thrown together, the probability of getting an even number on one die and an odd number on the other is  ?

A) 1 B) 1/2
C) 0 D) 3/5
 
Answer & Explanation Answer: B) 1/2

Explanation:

The number of exhaustive outcomes is 36.
Let E be the event of getting an even number on one die and an odd number on the other. Let the event of getting either both even or both odd then = 18/36 = 1/2
P(E) = 1 - 1/2 = 1/2.

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

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Q:

In a certain code language CONCENTRATION is written as QQJGZIGQGDMLX. How will NITRIFICATION be written in that code language?

A) QQJGZXRIKSGRM B) QQJGYXRIKSGRM
C) QQJGZXRIKSGRN D) QQJGZRIKSGSM
 
Answer & Explanation Answer: A) QQJGZXRIKSGRM

Explanation:

The first three letters are coded as same positioned letters from the right end of the alphabet. So are the seventh to tenth letters. The fourth , fifth and sixth letters move one, two and three positions forward respectively in the alphabet. So, do the last three letters. Thus,

CONCENTRATION => XLMDGQGIZGJQQ

Now reverse this and we get QQJGZIGQGDMLX

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Filed Under: Coding and Decoding

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Q:

Should cutting of trees be banned altogether?

Arguments:

I. Yes. It is very much necessary to do so to restore ecological balance.

II. No. A total ban would harm timber based industries.

A) Only argument I is strong B) Only argument II is strong
C) Neither I nor II is strong D) Both I and II are strong
 
Answer & Explanation Answer: D) Both I and II are strong

Explanation:
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Filed Under: Statement and Arguments
Exam Prep: GRE

6 18238
Q:

The difference between two numbers is 1365. When larger number is divided by the smaller one, the quotient is 6 and the remainder is 15. The smaller number is ?

Answer

Let the numbers be x and 1365+x


Then 1365+x = 6x+15 


=> x = 270

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Q:

In the following question, select the missing number from the given series.

 

25, 33, 42, 52, 63, ?

 

A) 70   B) 75  
C) 73   D) 78
 
Answer & Explanation Answer: B) 75  

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

13 18233
Q:

In a box, there are 5 black pens, 3 white pens and 4 red pens. In how many ways can 2 black pens, 2 white pens and 2 red pens can be chosen?

A) 180 B) 220
C) 240 D) 160
 
Answer & Explanation Answer: A) 180

Explanation:

Number of ways of choosing 2 black pens from 5 black pens in 5C2 ways.

 

Number of ways of choosing 2 white pens from 3 white pens in 3C2 ways.

 

Number of ways of choosing 2 red pens from 4 red pens in 4C2ways.

 

By the Counting Principle, 2 black pens, 2 white pens, and 2 red pens can be chosen in 10 x 3 x 6 =180 ways.

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Q:

In what ratio should two varieties of sugar at Rs.18 per kg and Rs.24 Kg be mixed together to get a mixture whose cost is Rs.20 per kg ?

Answer


= 4 : 2 = 2 : 1


Thus, the two varieties should be mixed in the ratio 2 : 1

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