Sally irons 8 shirts in 4 mins How long will it take her iron 1 shirt? 30 secs.
My strategy:
8 shirts=4 mins
4 shirts=2 mins
2 shirts=1 mins
1 shirt=30 secs
Showing posts with label Problem solving. Show all posts
Showing posts with label Problem solving. Show all posts
Wednesday, 29 March 2017
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