Question

how many numbers from 8 to 211 are divisible by 3

Answer 1

Answer:

first no divisible by 3 is equal to 9 and last no. divisible by 3 is 210 so first term is 3 last term is 210 and common difference is 3 hence by using concept of ap

a+(n-1)d =210

by putting values we get n equal to 88