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How many two digit no can be divisible by 3 ????

Posted by Binod Prasad 6 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Ram Kushwah 6 years, 7 months ago

Two digit number divisible by 3 are

12,15.......................99

This is an Ap and a=12,d=3 ,l=99,n=?

l=a+(n-)d

99=12+(n-1)*3

(n-1)*3=99-12=87

n-1=87/3=29

n=30

Total no are+30

0Thank You

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CBSE > Class 10 > Mathematics