2 years ago in Percentage

What percentage of numbers from 1 to 70 have 1 or 9 in the unit's digit?

[A] 1
[B] 14
[C] 20
[D] 21
[E] None of these
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Chhavi Jain
Chhavi Jain - 2 years ago

Chhavi Jain from Jaipur, India is saying 21 is correct answer

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