Question

Find the next number in the series 1, 3 ,7 ,13 ,21 ,31

Answer 1

Answer:

43

Step-by-step explanation:

The answer is simple they have added the consecutive even numbers to the result of each answer.i.e.

1+2=3

3+4=7

7+6=13

13+8=21

21+10=31

31+12=43

Here,the numbers in bold are result no.s

and the underlined no.s are consecutive even numbers.