Question

How many 2 digit numbers are grester than 10 are divisible by 2 and 5

Answer 1

Answer:

Step-by-step explanation:

a =20

d=10

An= 90

N=?

An = a+(n-1) d

90 = 20 +(n-1) 10

70 =(n-1) 10

n-1=7

N=8 Answer.