Question

Find the percentage of these numbers lies between 1 to 70 and containing 1 or 9 in their unit place
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Answer 1

Answer:

20%

Step-by-step 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.

Answer 2

Answer:

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