Question

For a given ap 8,12,16......200. what is the no. of terms

Answer 1

Answer:

a=8 d=12-8=4

an=200

To find no.of terms we have formula

an=a+(n-1)d

200=8+(n-1)4

200-8= 4n-4

192=4n-4

192+4=4n

196=4n

196/4=n

n=29

therefore total no.of terms are 29