Question

how many two digits numbers are divisible by 5 solve by A.P​

Answer 1

Answer:

a=5

d=5

tn=95

n=?

tn=a+(n-1)×d

95=5+(n-1)×5

95=5+5n-5

95=5n

n=95/5

n=19

There are 19 two digits numbers divisible by 5