In following questions, one term in number series is incorrect. - Find out the incorrect number 25, 36, 49, 81, 121, 169, 225

A. 36

In following number series, two terms have been put within brackets. Choose the appropriate option - Look at this series: 3, 4, 7, 8, 11, 12, . . . What number should come next ?

D. 15

In following question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces. - 4, 10, , 82, 244, 730

B. 28

In following number series, two terms have been put within brackets. Choose the appropriate option - Look at this series: 2, 6, 18, 54, . . .What number should come next?

C. 162

In following question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces. - 1, 4, 9, 16, 25, x

B. 36