Question

Find the missing number in the box given below.

• A. 10
• B. 15
• C. 20
• D. 25

Answer 1

The correct option is B 15


$40\times 20=800$
$40\times 3=120$
$5\times 20=100$
$5\times 3=15$
You have to multiply 5 and 3 to get 15.