Seaplane

A ship leaves on a long voyage. When it is 18 miles from the shore, a seaplane, whose speed is 10 times that of the ship is sent to deliver mail. How far from the shore does the seaplane catch up with the ship?
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buddycoolcd

  • May 22nd, 2008
 

ans is 20miles
explanation:
the seaplane travels 10 miles when ship travels 1 mile.
hence the seaplane travels 20 miles from shore when the ship is at 20 miles

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souravray_88

  • Feb 7th, 2010
 

Let speed of the ship be 1 mile/hr. then speed of the seaplane is 10 miles/hr. so, to travel 18 miles he seaplane requires 1.8 hrs. and in this 1.8 hrs. the ship has travelled 1.8 miles more. Therefore seaplane catch up with the ship at a distance of (18+1.8)=19.8=20 miles approx. from the shore.

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