Question

Find the missing series 1, 7 , 3, 9 , 6 , 12 , 10 , 16 ,15,

Answer 1

Answer:

1,7,3,9,6,12,10,16,15,21

Answer 2

The answer is 21

Step-by-step explanation:

• The given series is composed of two small series:

1st series - 1, 3, 6, 10, 15

2nd series - 7, 9, 12, 16

The pattern in both the series is -

• 1st series:

1 + 2 = 3

3 + 3 = 6

6 + 4 = 10

10 + 5 = 15

• 2nd series:

7 + 2 = 9

9 + 3 = 12

12 + 4 = 16

16 + 5 = 21

Thus, 21 would be the next number in the series.

[YOUR QUESTION IS INCOMPLETE BUT MOST PROBABLY YOU MEANT-

Find the missing number in the series 1, 7 , 3, 9 , 6 , 12 , 10 , 16 ,15,?]