Question

Sum of all natural numbers lying between 100 and 1000divisible by 14

Answer 1

First number between 100 and 1000 that is divisible by 14 is 112. (14x8)
and last number is 994. (14x71)

so total number between the space are n=71-7= 64

now applying the summation formula
$s = \frac{64}{2} \times (112 + 994) \\ \: \: \: = 31864$

Hope this helps

Answer 2

Answer:

refers to the attachment....