Question

Find the sum,of 3digit matural number which are divisable by 4​

Answer 1

Answer:

Step-by-step explanation:

If  N  is a  3 -digit number, then  100≤N<1000 . This problem asks for the sum of all such  N  that is divisible by  4 . Let  N=4k  where  k  is another positive integer.

100≤N=4k<1000⟹25≤k<250 .

It is convenient to use Python to find the sum of all multiples of  4  between  100  and  1,000  (inclusive on the left side):

sum(4*k for k in range(25, 250))

The answer is  123,300 .

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