Question

What's missing from this sequence of numbers?4,8,12,20,??,52
A.30 B.24 C.32 D.28

Answer 1

Solution :-

4, 8, 12, 20, ? ? 52

The correct answer of this question is 28

Explanation -

Difference between 1st & 2nd and 2nd & 3rd number is 4.

Difference between 3rd and 4th number is 8. So, the difference between the 4th and 5th number will also be 8.

So, the correct number should be 20 + 8 = 28

So, option (D), 28 is correct.

Answer 2

4,8,12,20,32,52

4+8=12

8+12=20

20+12=32

32+20=52