इस श्रंखला को देखिए : 21, 9, 21, 11, 21,...

इस श्रंखला को देखिए : 21, 9, 21, 11, 21, 13, 21……… अगली संख्या क्या होगी चाहिए ?

A

14

B

15

C

21

D

23

लिखित उत्तर

Verified by Experts

The correct Answer is:

B

`21to21to21to21to9overset(+2)(to)11overset(+2)(to)13overset(+2)(to)15`

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