How many numbers of two digit are divisible by 3?
Answers
Answered by
9
Answer:
a + (n-1)d formula will used for finding .
Step-by-step explanation:
as the two digit no start from 12 and ends 99 . which divisible by 3
we get..
99=12+(n-1)×3
87 = (n-1)×3
29= n -1
n = 30
so there are 30 two digits number ..
hope this help you...
Rj... TheRoarof lion...
Answered by
3
12, 15 ,18......99
a=12
d =3
An= 99
An =a+(n-1) d
99= 12 +(n-1) 3
99 = 12 + 3n -3
99= 9 +3n
99 -9 =3n
90 =3n
90/3 = n
30 = n✔️✔️
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#misspeacee
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