Question

The sum of first 40 posituve intiger dividible by 6 is

Answer 1

Answer:

The positive integers that are divisible by 6 are

6, 12, 18, 24 …

It can be observed that these are making an A.P. whose first term is 6 and common difference is 6.

a = 6 , d = 6 , S(40) =? & l = 240

S(40) = 40/2 (6+240) = 20 × 246

= 4920.

✨Hope it will help you.✨

Answer 2

we have to find s40 when a is 6 and d is 6