Question

Carefully study the given arrangement and answer the question that follows.
442192624981346915234943124285618
In the above given arrangement, how many 4s are immediately followed by a perfect square?
o 4
1
o 2
3
0​

Answer 1

Carefully study the given arrangement and answer the question that follows.

442192624981346915234943124285618

In the above given arrangement, how many 4s are immediately followed by a perfect square?

o 4

1

o 2

3

0

Answer 2

There are total three 4s are immediately followed by a perfect square.

Step-by-step explanation:

Given arrangement,

442192624981346915234943124285618

=> A perfect square is a number which is a product of 2 same integers or a number who is a square of a particular integer

=> Lets move from left to right in the arrangement given.

* The  4 in 1st place is followed by a 4, which is a perfect square as it is a square of 2(2 × 2 = 4)

* The 4 in the 2nd place is followed by a 2, which is not a perfect square.

* The 4 in the 9th place is followed by a 9, which is a perfect square as it is a square of 3 (3 x 3 = 9)

* The 4 in the 14th place is followed by a 6, which is not a perfect square.

* The 4 in the 21st place is followed by a 9, which is a perfect square as it is a square of 3 (3 x 3 = 9)

* The 4 in the 23rd place is followed by a 3, which is not a perfect square.

* The 4 in the 27th place is followed by a 2, which is not a perfect square.

There are total three 4's which are followed by a perfect square.