Question

If 3 X 4=16, 4 X 5=25, 7X5=?

Answer 1

3×4=16
4×5=25
7×5=40

because 3×4+4=16
4×5+5=25
as , 7×5+5=40

Answer 2

3 x 4 = 16 ⇒ 3 x 4 + 4 = 16

4 x 5 = 25 = 4 x 5 + 5 = 25

therefore,

7 x 5 → 7 x 5 + 5 = 40

Answer: 40