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Jim is mowing lawns to earn money to buy a new bike and he knows he needs to mow
20 lawns to earn enough money. If he can mow 3 lawns in 3 hours and 30 minutes,
how long will it take him to mow 20 lawns? Assume that he can mow each lawn in the
same amount of time.
A23 hours and 20 minutes
B15 hours and 45 minutes
C12 hours and 30 minutes
D1 hour and 45 minutes