Question

How many 2digit divisible by 7

Answer 1

Answer:

13 two digit numbers

Step-by-step explanation:

A.P : 14, 21, 28,……,98

a=14

d=21–14=7

An=98

By using, An=a+(n-1)d

98=14+(n-1)7

98–14=(n-1)7

84÷7=n-1

12=n-1

n=12+1

n=13

There are 13 numbers divisible by 7.