How many two digit natural numbers are divisible by 3.
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Answered by
1
Answer:
hi frnd...
there are 30 two digit numbers which r divisible by 3.....
Answered by
41
Two digit number divisible by 3 are:-
12,15,18.................99
a=12
d=3
an=99
n=?
an=a+(n-1)d
99=12+(n-1)3
99=12+3n-3
99=3n+9
90=3n
so, n=
hence, 30 two digit number are divisible by 3.
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