What percentage of numbers from 1 to 30 has 1 or 9 in the unit's digit? - Study24x7
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3613 followers study24x7 21 Jul 2020 12:39 PM study24x7 study24x7

What percentage of numbers from 1 to 30 has 1 or 9 in the unit's digit?

A

12

B

15

C

20

D

22

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