Question

true or false:
10th term of A.P. 10,20,30,40......is 100​

Answer 1

A.P = 10,20,30,40

a = 10 (First term)

d = 20-10 = 10

Need to find the 10th term i.e n = 10

an = a+(n-1)d

a10 = 10+(10-1)10

= 10+(9)10

= 10+90

= 100

$\huge\boxed{\fcolorbox{white}{blue}{TRUE}}$