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

Answers (1)

Total numbers in 1 to 70 which has 1 in the unit digit = 7

Total numbers in 1 to 70 which has 9 in the unit digit = 7

Total numbers in 1 to 70 which has 1 or 9 in the unit digit = 7 + 7 = 14
 

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