Q. 173.9( 13 Votes )
How many numbers
Two digit numbers divisible by 3 are 12, 15, 18,… ,99
Hence, a= 12, ,d=3
an= a + (n -1)d
99= 12(n -1)3
99= 9 = 3n
Hence, the total numbers of two digit divisible by 3 are 30.
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