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**mimib1230** Hey everyone! You may expect to see more of these...plenty more. I can't figure these out :/

2. Two cyclists start biking from a trail's start 3 hours apart. The second cyclist travels at 10 miles per hour and starts 3 hours after the first cyclist who is traveling at 6 miles per hour. How much time will pass before the second cyclist catches up with the first from the time the second cyclist started biking? A. 2 hours

B. 4 ½ hours

C. 5 ¾ hours

D. 6 hours

E. 7 ½ hours

3. Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1 ½ hours. How quickly can all three fill the pool together?

A. 12 minutes

B. 15 minutes

C. 21 minutes

D. 23 minutes

E. 28 minutes