Question

एक 1 से 1000 तक की संख्याओं का योग कितना ​

Answer 1

Answer:

a = 1

l = 1000

n = 1000

Sn = n/2(a+l)

= 1000/2(1+1000)

= 500(1001)

= 500500. Ans.

Answer 2

Answer:

500,500

Step-by-step explanation:

We represent the numbers from 1 to 1000

1, 2, 3, 4, ………. 996, 997, 998, 999, 1000

From the outsides inwards we add

1+ 1000 = 1001

Then we add 2 + 999 = 1001

Next we add 3 + 998 = 1001

………

That is, every time we make a sum like this, we will always have 1001.

How many sums will have to be made? Only 500 sums.

So, if we multiply 1001 five hundred times:

We will have: 500 x 1001 = 500500