Question

15. 14, 17, 15, 19, 16, 21, 17, 23, 25
(A) 19
(B) 25
( 23
(D) 17​

Answer 1

25 is the wrong term in the series. Thus option B is correct

Solution:

We have been given a series and we have to find the wrong number in the given series

15, 14, 17, 15, 19, 16, 21, 17, 23, 25

If we look at the above series then it contains two  series

Let us split the given series into series

First series is: 15, 17, 19, 21, 23

Second Series is: 14, 15, 16, 17, 25

Let us analyse the first series:

15, 17, 19, 21, 23

In this series, the successive numbers differ by 2. That is, next term in series is obtained by adding 2 to previous term

Let us analyse the second series:

14, 15, 16, 17, 25

In this the successive number is increasing by 1

Except 25 which is the wrong number

Hence the wrong term in the given series is 25. Thus option B is correct

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