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 195

How many such 3s are there in the given arrangement, each of which immediately preceded by an odd digit and also immediately followed by an even digit ?

Solution

We need to find 3's which are immediately preceded by an odd digit and also immediately followed by an even digit

= (odd) (3) (even)

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 3's.

=> Ans - (B)

Share on Whatsapp Share on Whatsapp

Create a FREE account and get: