Question

please answer the question please
Arithmetic Progression​

Answer 1

Answer:

30numbers are divisible by 3

Answer 2

Answer 30

Step-by-step explanation:

first two digit no dividsible by 3 =12

last two digit no divisible by 3=99

L=a+(n-1)d : a=12 , d=3 , L= 99

99=12+(n-1)3

99=12+3n-3

99=3n+9

3n=90

n=30