Tuesday, April 22, 2008

ratio and proportion problems

1. A cyclist travels 225 kilometers in 7 hours. Traveling at the same rate, how far will he travel in 35 hours?

2. If a yardstick (3 feet long) casts a shadow 15 centimeters long at the same time a nearby tree casts a shadow 150 centimeters long, how tall is the tree in feet?

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