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6 June, 05:39

What percentage of numbers from 1 to 70 has 1or 9 in their number digit

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  1. 6 June, 05:41
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    20% of number 1 to 70 has one or nine in it

    Explanation:

    20% numbers from 1 to 70 have 1 or 9 in the unit's digit. 1,9,11,19,21,29,31,39,41,49,51,59,61,69 this is that series of numbers. These are total 14 numbers out of 70 so 14/70*100 gives us 20 % occurrence of 1 or 9 at unit place.
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