Question

1, 4, 3, 16, 6, 36, 10, 64, 15, 100, ?
Options:
1) 21
2) 19
3) 22
4) 25

Answer 1

Option no. 1 is the right answer.

Answer 2

Answer:

Missing Number is 21 ( Option 1 )

Step-by-step explanation:

Hey Mate,

Given Series : 1, 4, 3, 16, 6, 36, 10, 64, 15, 100, ?

This is double series question.

Double Series : Double series questions is a type of questions  of mixer of 2 series.

Series 1  : 1, 3, 6, 10, 15, X

Series 2 : 4, 16,36,64,100.

The missing number is from Series 1.

So, we just have to find the logic of series 1.

Series 1  : 1, 3, 6, 10, 15, X

Logic:

1 + 2 = 3

3 + 3 = 6

6 + 4 = 10

10 + 5 = 15

So, the next number is

15 + 6 =21

Missing Number is 21 ( Option 1 )