Series Based MCQ Quiz - Objective Question with Answer for Series Based - Download Free PDF

Given series: (Left) 5 6 9 7 4 5 3 7 8 3 4 2 1 5 7 9 8 1 2 3 4 3 6 2 1 5 7 (Right)

According to the question, such odd digit which are immediately preceded by an even digit and is immediately succeeded by an odd digit:

Required condition: Even digit - Odd digit - Odd digit

(Left) 5 6 9 7 4 5 3 7 8 3 4 2 1 5 7 9 8 1 2 3 4 3 6 2 1 5 7 (Right)

Thus, there are four such odd digit which are immediately preceded by an even digit and is immediately succeeded by an odd digit.

Hence, "Option 2" is the correct answer.

Given series: 2 9 7 3 1 7 3 7 7 1 3 3 1 7 3 8 5 7 1 3 7 7 1 7 3 9 0 6

According to the question:

Required condition: 1/3 - 7 - 1/3

2 9 7 3 1 7 3 7 7 1 3 3 1 7 3 8 5 7 1 3 7 7 1 7 3 9 0 6

Thus, three times do the digits '1', '3' and '7' appear together in the given series of numbers when '7' is in the middle and '7' has '1' on one side and '3' on the other side.

Hence, "Option 1" is the correct answer.

Given series:

5 9 3 2 1 7 4 2 6 9 7 4 6 1 3 2 8 7 4 1 3 8 3 2 5 6 7 4 3 9 5 8 2 0 1 8 7 4 6 3

Condition to be checked:

i) 4's are preceded by 7 but not followed by 3.

7 → 4 → Not 3

5 9 3 2 1 7 4 2 6 9 7 4 6 1 3 2 8 7 4 1 3 8 3 2 5 6 7 4 3 9 5 8 2 0 1 8 7 4 6 3

There are 4 such 4's.

Hence, the correct answer is "Option 4."

Given series: 1 2 3 7 9 7 4 3 6 9 7 2 1 7 4 9 5 2 5 4 7 9 5 2 9 7 1 4 7 1

According to the question, such '7' which are immediately preceded and followed by perfect square numbers:

Required condition: Square number - 7 - Square number

1 2 3 7 9 7 4 3 6 9 7 2 1 7 4 9 5 2 5 4 7 9 5 2 9 7 1 4 7 1

Thus, there are five such '7' which are immediately preceded and followed by perfect square numbers.

Hence, "Option 3" is the correct answer.

Given number: 37825636748

Operation 1: The digits at the even position are increased by 1.

Operation 2: The digits in the number are arranged in increasing order(from left to right).

New number: 33355777888

The seventh element from the left end = 7

The fourth digit of the right of 7 is 8.

Hence, the correct answer is "8".

The logic followed here is:

Condition to be checked:

i) The number 8 not followed by the number 4 but is preceded by the number 5 are given below:-

5 → 8 → Not 4 (4)

6 5 8 2 3 5 8 1 2 5 8 3 4 3 5 6 5 4 5 8 6 5 8 4 5 8

So, there are 5 pairs in which the number 8 is not followed by the number 4 but is preceded by the number 5.

Hence, "option 1" is the correct answer.

Mistake Points 

Immediately preceded by means immediately before or to come just before.

Immediately followed by means immediately after or to come just after.

Given: 5442673314884743581

The number of 4s that are completely divisible by the number on their right but not divisible by the number on their left is:

Note: other 4s are not counted because

Hence, the correct answer is "1".

Given number is: 56789

After 1 is added to every odd digit and 1 is subtracted from every even digit as per the question the number become: 658710

Mistake Points

Immediately preceded by means immediately before or to come just before.

Immediately followed by means immediately after or to come just after.

The pattern followed here is:

Condition to be checked:

i) 4’s is immediately preceded by an even number and also immediately followed by an odd number.

Even number → 4 → Odd number.

Given Series: 245341844248643641741842647

4’s which are immediately preceded by an even number AND also immediately followed by an odd number → 245341844248643641741842647

Hence, there are 4 such 4's.

Given that:-

6 7 4 8 5 8 8 4 8 3 2 5 8 6 7 8 3 8

• If the first and second, third, and fourth terms of the sequence are interchanged, then:-

7 6 8 4 5 8 8 4 8 3 2 5 8 6 7 8 3 8

There are two (5 8 6, 7 8 3) 8s that will not be divisible by the numbers on their left and right number.

Hence, "option 4" is the correct answer.

We have to find the triad which looks like (odd, odd, even) in the given series:

We can see that there is only one such odd number which is immediately preceded by an odd number and immediately followed by an even number.

Hence the correct answer is option 2)

Given the number sequence:

5 3 8 4 7 9 6 5 3 9 2 7 8 2 1 4 5 6 3 8 2 6 5 8 6 7

There are total 8 times an odd number is immediately followed by an even number.

Hence, "8" is the correct answer.

Given series: 3 6 17 2 4 8 13 12 14 1 3 6 19

After deleting even numbers:

3 17 13 1 3 19

Here, 4^th from the right is 13 when even numbers from the series are deleted.

Given series:

1 1 2 1 5 6 7 2 2 1 1 1 5 1 2 2 1 1 3 2 5 1 2 2 6 6 7 8 5 1 2 9 8 1 1 1 7 5 2 1