# A series is given with one term missing. Select the correct alternativ

| A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

13, 16, 11, 18, 9, 20, ?

A. 3

B. 5

C. 6

D. 7

### Right Answer is: D

#### SOLUTION

1^{st} series: 13, 11, 9, __

2^{nd} series: 16, 18, 20, __

Therefore, the 1^{st} series is AP with a common difference of ‘-2’ and the missing term is from that so,

9 – 2 = 7.

Hence, the correct option is D.

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