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9 votes
9 votes
Nikki has rowing lessons every four days and tennis every 7 days. If she had both lessons on the last day of the previous month, when will she have both lessons on the same day of the current month?

User Avisra
by
3.0k points

1 Answer

25 votes
25 votes

we know that

Nikki has rowing lessons every four days

so

4 8 12 16 20 24 28

and

tennis every 7 days

7 14 21 28

therefore

She will have both lessons again the day 28 of the current month

User HamzaMushtaq
by
3.5k points