Aptitude and Reasoning Questions

Q:

Which of the following pair of numbers is the solution of the equation 3x+2+ 3x= 10 ?

A) 0, 2   B) 0, -2
C) 1, -1 D) 1, 2
 
Answer & Explanation Answer: B) 0, -2

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

1 3136
Q:

Diagrammatic representation of data includes which of the following?

1) Bar diagram

2) Pie-diagram

3) Pictogram

Select the correct answer using the code given below:

 

A) 1 and 2 only B) 2 and 3 only
C) 1 and 3 only D) 1, 2 and 3
 
Answer & Explanation Answer: D) 1, 2 and 3

Explanation:
All three are types of data representation
Pictogram uses pictures so show different identities with different numbers
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Q:

A man moves towards the east and then takes a left turn. After covering some distance in that direction, he takes a right turn and finally, takes another right turn. Which direction is the man facing now?

A) West B) East
C) South D) North
 
Answer & Explanation Answer: C) South

Explanation:
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Filed Under: Direction Sense Test
Exam Prep: AIEEE , Bank Exams , CAT

4 3134
Q:

What is the sum of all 3 digits number that can be formed using digits 0,1,2,3,4,5 with no repitition ?

A) 28450 B) 26340
C) 32640 D) 36450
 
Answer & Explanation Answer: C) 32640

Explanation:

We know that zero can't be in hundreds place. But let's assume that our number could start with zero.

 

The formula to find sum of all numbers in a permutation is

 

111 x no of ways numbers can be formed for a number at given position x sum of all given digits

 

No of 1 s depends on number of digits

 

So,the answer us

 

111 x 20 x (0+1+2+3+4+5) = 33300

 

We got 20 as follows. If we have 0 in units place we can form a number in 4*5 ways. This is for all numbers. So we have substituted 20 in formula.

 

Now, this is not the final answer because we have included 0 in hundreds place. so we have to remove the sum of all numbers that starts with 0.

 

This is nothing but the sum of all 2 digits numbers formed by 1 2 3 4 5. Because 0 at first place makes it a 2 digit number.

 

So the sum for this is 11 x 4 x (1+2+3+4+5).
=660

 

Hope u understood why we use 4. Each number can be formed in 4x1 ways

 

So, the final answer is 33300-660 = 32640

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Filed Under: Permutations and Combinations
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

2 3132
Q:

Choose a figure which would most closely resemble the unfolded form of Figure (Z).

A) A B) B
C) C D) D
 
Answer & Explanation Answer: C) C

Explanation:
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Filed Under: Paper Cutting

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Q:

If HEROISM is coded as SVILRHN, then how will ALP be coded as?

A) LTV B) ZSX
C) SGD D) ZOK
 
Answer & Explanation Answer: D) ZOK

Explanation:
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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

1 3125
Q:

Cause : A severe cyclonic storm swept away most part of the state during the last two days.

Which of the following cannot be a possible effect of the above cause?

A) Heavy rainfall was reported in most part of the state during the last two days B) Many people were rendered homeless as their houses were flown away
C) The communication system of the state was severely affected and continues to be out of gear D) Govt has ordered that all the offices and schools should be kept open
 
Answer & Explanation Answer: D) Govt has ordered that all the offices and schools should be kept open

Explanation:

In such a cataclysmic scenario, the govt is likely to order the closure of offices and schools

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Q:

The value of 1+22+23+24+...+29 is

A) 255 B) 511
C) 1021 D) 2047
 
Answer & Explanation Answer: C) 1021

Explanation:
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Filed Under: Numbers
Exam Prep: Bank Exams , CAT

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