Instructions

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

Question 171

How many such 4s are there in the above arrangement each of which is immediately preceded by a digit which has a numerical value more than four ?

Solution

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

4's which are immediately preceded by a digit which has a numerical value more than four = (>4) (4)

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

Thus, there are two such 4's.

=> Ans - (C)

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