Find Missing Number?

A. 5

B. 7

C. 8

D. 9

Answer: C

Solution:

This octagonal figure has eight numbers written on it. Look carefully these numbers are not in any order
1, 2 , 4, 3 , 24 , 12 , 6, ?

These numbers are not forming any pattern like this.

But if we consider these numbers pairwise opposite to each other like this
( 1, 24 ), ( 2, 12 ), ( 4, 6 ), ( 3, ? ) and then check the multiplication/product of these paired numbers, we shall have the same result every time.

Look at here

1 × 24 = 2 × 12 = 4 × 6 = 3 × ? = 24

Hence 3 × ? = 24

? = 24 /3

? = 8