Instructions

Study the following arrangement carefully and answer the questions given below :
3 9 2 4 7 5 9 2 8 1 4 9 5 3 1 6 5 7 3 4 2 9 8 1 3 6 2 8 1 7 5 4 5

Question 191

How many such 2s are there in the given arrangement, each of which is immediately followed by a perfect square?

Solution

We need to find 2's which are immediately followed by a perfect square

= (2) (perfect square)

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

Thus, there are two such 2's.

=> Ans - (D)


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