Number Arrangement MCQ Quiz - Objective Question with Answer for Number Arrangement - Download Free PDF

Given series: 8142769

According to the question, each of the digits in the given number is arranged in the ascending order from left to right.

8142769 → 1246789

So, digit that will be fourth from the left in the new number thus formed is → 1246789 → 6

Hence, "Option 2" is the correct answer.

Given series: 1437586

According to the question.

So, difference between the highest and lowest digits in the number thus formed → (8 - 2) → 6

Hence, "Option 4" is the correct answer.

Given numbers: 662, 268, 547, 409, 909

Comparing all the given numbers, the highest number is 909.

For 909, the third digit is 9.

Comparing all the given numbers, the lowest number is 268.

For 268, the first digit is 2.

The third digit of the highest number (9) is to be subtracted from the first digit of the lowest number (2).

→ First digit of lowest number - Third digit of highest number

→ 2 - 9 = -7.

The resultant is -7.

Hence, the correct answer is "Option 1".

Given: 6154932

By adding 2 in the even digits and subtracting 1 from the odd digits, we will get,

The new number formed is: 8046842

Here, the digits that appear more than once are 4 and 8.

So, the number of digits that appear more than once is: 2

Hence, the correct answer is "Option 4".

Given: (Left) 956 521 251 156 335 (Right)

The second digit of the highest number is: 5 (956)

And, 

The first digit of the lowest number is: 1 (156)

So, the addition of the second digit of the highest number and the first digit of the lowest number is:

→ 5 + 1 = 6.

The correct answer is "Option 1".

Second element in every pair is third to the right of first element except 27.

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

There is a gap of two digits in every number like, there are 5 and 5 between 8 and 3 in 83.

Similarly, there are 7 and 2 between 3 and 5 in 35 and 7 and 8 between 8 and 1 in 81. But there are 5, 8, 8, and 7 between 2 and 7 in 27.

Hence, 27 does not belong to the group.

According to the given information:
When 2 is added to each odd digit and 1 is subtracted from each even digit in the number 94387251,
           

Now the new number is: 113579173

Now, the sum of the first, fifth and last digit is,
1 + 7 + 3 = 11

Hence the correct answer is option 3)

According to the given condition the series becomes:

Now we have, 2 as third from left and 8 as second from right.

Sum = 2 + 8 = 10

Hence, the correct answer is option 1).

Given numbers: 378 256 431 875 762

On subtracting first and third digits,

378 = 8 – 3 = 5

256 = 6 – 2 = 4

431 = 4 – 1 = 3

875 = 8 – 5 = 3

762 = 7 – 2 = 5

Hence, 4 is the second highest resultant which is obtained from 256.

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

Thus, the 3^th digit from the left end will be = 8

Numbers that are not divisible by 2 are odd numbers.

Given sequence of numbers is :

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

(5,1) (7,3) (3,9) (5,7) (3,1) (1,5)

Hence, 6 is the correct answer.

Left 5 9 7 6 8 9 5 6 9 5 7 8 4 6 9 3 5 8 8 6 7 7 9 Right

odd numbers each of which is an odd number after and before the odd number is; 

5 9 7 6 8 9 5 6 9 5 7 8 4 6 9 3 5 8 8 6 7 7 9

There are four odd numbers that are after and before the odd number.

Hence, "Four" is the correct answer.