Question

Find the value of x ,when in the ap given below , 2+6+10.....+x=1800

Answer 1

A/Q

a=2

d=4

Sum=1800

now

n/2(4+(n-1)4)=1800

4n+4n^2-4n=3600

n^2=900

n=30

now last term

x=2+(30-1)4

x=2+(29)*4

x=118

MARK BRAINLIEST

FOLLOW.