question_answer

Select the missing number from the given responses.

A)  13                               

B)  15

C)  10                               

D)  9

Correct Answer: A

Solution :

\[16\to 1+6=7\] (sum of digits is given in the opposite sector). Also  \[25\to 2+5=7;\] \[36\to 3+6=9;\] \[36\to 3+6=9;\] hence, \[49\to 4+9=\underline{\mathbf{13}}\]