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Washing his dad's car alone, Ken takes 6.5 hours. If his dad helps him, then it takes 6 hours. How long does it take Ken's dad to wash the car by himself?

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Raikiri67

Answer:

so it would take Ken's dad 30 mins. to wash the car by himself

Step-by-step explanation:

if ken takes 6.5 hrs. and if his dad helps it takes .5 hrs. less to wash the car.

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