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How many two digit numbers are divisable by 3 ? (First pre boards question no.1 section A) |
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Answer» AP: 12,15.........99Here a=99; d=3; an=l=99an=a+(n-1)×d99=12+(n-1)×3n=30 Ans -33 Answer is 30 but I am not able to understand how it came 99is divided by 3 is two digit number 33 answer |
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