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Zorluk: KolayRound Trips

A ferry transports vehicles from the mainland to an island 1818 miles away. The ferry travels to the island at a speed of 99 miles per hour and returns to the mainland along the same route at a speed of 66 miles per hour.

How many hours does the complete round trip take?

Cevap: 5 hours

Cevap

The complete round trip takes 5 hours.
The round trip consists of two legs with different speeds. The outbound leg takes 18÷9=218 \div 9 = 2 hours. The return leg takes 18÷6=318 \div 6 = 3 hours. Adding these together yields a total time of 55 hours for the entire trip.

Adım Adım Çözüm

1
Calculate the time taken for the outbound trip.
18÷9=218 \div 9 = 2 hours
Time is equal to distance divided by rate. This gives the time spent traveling to the island.
2
Calculate the time taken for the return trip.
18÷6=318 \div 6 = 3 hours
The return trip covers the same distance but at a slower speed.
3
Calculate the total round-trip time.
2+3=52 + 3 = 5 hours
The total time for a round trip is the sum of the time spent on each individual leg.

Anahtar Kavram

Calculating total round-trip time by finding the time for each leg separately.
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Round Trips

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