41.3k views
3 votes
490 buttons in 3 1/2 hours

490 buttons in 3 1/2 hours-example-1
User Titou
by
7.6k points

2 Answers

3 votes
fraction = 980/7
per hour - 140 buttons a hour
User Theintersect
by
8.9k points
5 votes
140 if finding how many by hour

User RD Ward
by
8.2k points
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