Question

Find the missing number

• A. 30
• B. 20
• C. 40
• D. 15

Answer 1

The correct option is A

30

For the first two rows:

$8÷4=2$ and $24÷8=3$

$6÷3=2$ and $18÷6=3$

So, we observe that in a row:

Number in the second column = 2 $\times$ Number in the first column

Number in the third column = 3 $\times$ Number in the second column

So, 2 $\times$ 5 = 10 and 3 $\times$ 10 = 30

Hence, the missing number is 30.