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InterviewSolution
| 1. |
How many two digit no can be divisible by 3 ???? |
| Answer» Two digit number divisible by 3 are12,15.......................99This is an Ap and a=12,d=3 ,l=99,n=?l=a+(n-)d99=12+(n-1)*3(n-1)*3=99-12=87n-1=87/3=29n=30Total no are+30 | |