Question

find how many integers between 200 and 500 are divisible by 8

Answer 1

40 INTEGERS BETWEEN 200 AND 500 ARE DIVISIBLE BY 8
 YOU CAN SOLVE IT USING AP
WHERE A = 200 AND D= 8 AND An=496

Answer 2

First term between 200 and 500 divisible by 8  is 208, and the last term is 496

First term, a = 208

Common difference (d) = 8

an = a + (n – 1) d = 496

⇒ 208 + (n – 1) 8 = 496

⇒ (n – 1) 8 = 288

⇒ n – 1 = 36

⇒ n = 37

Hence, there are 37 integers between 200 and  500 which are divisible by 8.