4 years ago

You can ride a bicycle 15 mph. Your sister

Mathematics

1 answer:

igor_vitrenko [27]4 years ago

5 0

Answer:

Step-by-step explanation:

Find the LCM of 12 and 15.

LCM = 60.

Now divide the LCM by the two numbers.

60/12 = 5, 60/15 = 4.

As the sister got an hour head start, subtract one.

5-1=4.

Therefore it will be 4 hours.

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