Sheet # 80/Time/Rate Problems
Name: _____________________ Date_____________
1. Dan timed himself when he stamped the school name on the tickets he made. He found that he could stamp 8 tickets in 1 minute. We say that Dan's rate of work was 8 tickets per minute. At that rate, how many tickets could he stamp in 4 minutes? 6 minutes?
2. Charlie decided to make garden stakes. He can make them at the rate of 5 per hour. How many stakes can he make in 3 hours? 8 hours?
3. If Charlie can make 5 stakes an hour, how long will it take him to make 10 stakes? 15? 20?
4. If Dan can stamp 8 tickets a minute, how long will it take him to stamp 16 tickets? 24? 40?
5. Richard and Peter were addressing cards for the school to send to the members of the Parent Teacher Association. Richard addressed 20 cards in 5 minutes. Peter addressed 24 cards in 8 minutes. Can you figure out which of the boys is the faster worker?
Richard addressed cards at the rate of __________ cards per minute. Peter addressed cards at the rate_____________ cards per minute.
6. At camp it took Ellen 6 minutes to pare 12 potatoes. It took Molly 4 minutes to pare12 potatoes. It took Grace 3 minutes to pare 12 potatoes.
a) How many potatoes per minute did Ellen pare? Molly? Grace?
b) Who was the fastest worker?