Question

find the sum of all even numbers from 1 to 150​

Answer 1

Step-by-step explanation:

Even numbers 1 to 150

2,4,6,8,.....150

This is an Ap

a1=2 ,an= 150,d=2

an=a1+(n-1) d

150= 2+(n-1) 2

2n=150

n= 75

Sn = n/2(a1+an)

Sn= 75/2(2+150)

Sn= (75×152)/2

Sn = 75×76

Sn = 5700

Answer is 5700

thanks dear friend

I hope you help