Question

What is the sum of first 10 natural number?
45
A)
65
B)
50
C)
55

D)​

Answer 1

Answer:

55 is the sum of positive integers upto 10

overall C) 55

Answer 2

Answer:

55

Step-by-step explanation:

THE NATURAL NUMBERS START FROM 1 , SO THE FIRST 10 NATURAL NUMBERS ARE 1, 2,3,4,5,6,7,8,9,10

SO WE ADD THEM UP TO GET 55.

A smarter approach can be using the formula = n(n+1)/2 , where n is the number of terms , and the formula gives the sum so

the sum = 10(10+1)/2=10*11/2= 55