Question

Find the sum of all natural number between 250 and 1000 divisible by 8 Options are a) 48032 b) 58032 c) 7472 d) None of these ​

Answer 1

Answer:

58032

Step-by-step explanation:

The 1st number after 250 divisible by 8 is 256 and 1000 is divisible by 8.

256=8×32. 1000=8×125

So there are 125-32+1=94 numbers between 250 and 1000 divisible by 8.

Their sum(n/2)(a+l)=94/2(256+1000)

47×1256=58032