Find the missing number from the given responses in each of the following questions?
30
13
70
118
Solution
First figure = 15 + 12 = 27; and $27 \div 9 = 3$; Second figure = 44 + 28 = 72; and $72 \div 9 = 8;$ Similarly, in third figure 64 + 53 = 117; and $117 \div 9 = 13$