Question

how many numbers from 1001 to 2000 divih sible by 4

Answer 1

Smallest number from 1001 divisible by 4 = 1004

Largest number below 2000 divisible by 4 = 2000

We have an arithmetic progression with 1004 as the first term and 2000 as the nth term with 4 as the common difference.

nth term in an AP, an= a1 + (n - 1)d

Plugging in the above values,

2000 = 1004 + (n - 1)4

or 2000 = 1004 + 4n - 4

or n = 250