इस श्रंखला को देखें: 7, 10, 8, 11, 9, 12, ... आगे कौन सी संख्या आनी चाहिए? , Look at this series: 7, 10, 8, 11, 9, 12, ... What number should come next?

A. 7

B. 10

C. 12

D. 13

Correct Answer :

B. 10

Explanation

This is a simple alternating addition and subtraction series. In the first pattern, 3 is added; in the second, 2 is subtracted.