Question

what is next number of 3,10,21,..

Answer 1

3×1=3
5×2=10
7×3=21
9×4=36


so ,I think the ans is 36....

Hope it helps you....✌✌

Thankyou SA@#

Answer 2

I think the answer is 12 as 3 had no second digit 10 has 0 and after 0 comes 1 which 21 has and 3 minus 1 (10) which are both the first digits equals 2 which 21 has

so the answer is 12