Question

Fill in the blank

$\begin{array}{ccc}7& 9& \left(41\right)\\ 8& 6& \left(34\right)\\ 9& 5& (-)\end{array}$

Answer 1

The third number in each row is the sum of twice the first number and thrice the second number.
Formula : 2a + 3b = c
$(7\times 2)+(9\times 3)=14+27=41$
$(8\times 2)+(6\times 3)=16+18=34$
$(9\times 2)+(5\times 3)=18+15=33$