Question

This question is from arithmetic
progession answer my question with all explanation and I will follow you ​

Answer 1

Answer:

30

Step-by-step explanation:

let first two digit number divisible by 3 is 12

last two digit number divisible by 3 is 99

hence A.P. is 12,15,18.....99.

let a = 12 and d ( common difference) = 15-12 =3

let's consider n as the numbers = 99

tn = a + (n-1)d

99= 12+(n-1)3

99= 12+3n - 3

99-12+3= 3n

90=3n

n=90÷3

n=30

hence the two digit number divisible by 3 is 30