Question

1+2+3+4+....+....100?

Answer 1

Step-by-step explanation:

Let S =1+2+3+4+5+6+7+8+...100—(1

S = 100+99+98+97+96....+1—(2

Adding 1 and 2

2S = 101+101+101+101.... 100 times

=> 2S = 101×100

=> S = 101×100/2 = 5050

Answer 2

Answer:

$5050$

Step-by-step explanation:

It is the correct answer.