Question

how many numbers between 200 and 500 are divisible by 13?

Answer 1

a(n) = a(1)+(n-1)×d

494 =208+(n-1) ×13

494-208 =(n-1)×13

286=(n-1)×13

296/13 =n-1

22=n-1

22+1=n


23=n

Hence, there are 23 numbers which are divisible by 13.


I hope this will help you


-by ABHAY

Answer 2

total-numbers-between-200-500-divisible-by-13 is 23