Question

Find the sum of the first 100 natural numbers :

• A. 5050
• B. 5005
• C. 9900
• D. 9050

Answer 1

Answer:

A. 5050

first term = 1 n=100 sum = n/2 ​[first term + last term] = 100/2 ​[1+100] =50×101 =5050