Question

4x5=25 5x6=36 7x5=40 Then, 8x5=? A) 45 B) 30 C) 35 D) 25

Answer 1

A) 45

Explanation:

Think of each equation as

a × b = c

These equations do not work naturally.

(a + 1) × b = c works naturally

therefore think of the last equation as

(8 + 1) × 5 = c

9 × 5 = c

45 = c