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At the same moment, two trains leave Chicago and
New York. They move towards each other with costant
speeds. The train from Chicago is moving at speed of
40 miles per hour, and the train from New York is
moving at speed of 60 miles per hour. The distance between
Chicago and New York is 1000 miles. How long
after their departure will they meet?
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| A plane takes 6 hours to fly from San Francisco to
New York, and 5 hours to return back. The wind
velocity is 50 miles per hour, from New York to
San Francisco. What is the speed of the airplane.
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A barge has speed over water of 5 miles per hour. A river
flows downstream at the speed of 1 miles per hour. How
long will it take the barge to go from point A to point B upstream,
and then back, if the distance from A to B is 24 miles?
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A freight train leaves a station travelling at 30 mph
A passenger train leaves 1 hours later travelling at
50 mph. At what time will the passenger train overtake
the freight train?
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The fastest moving insect is the large tropical cockroach. It
scurries at speeds of up to 2.3 feet per second. Now write an
equation that represents how many miles a roach can travel in
1.5 hours.
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Jim and Sarah who are hiking in wilderness,
decide to leave their tent and walk around a lake. They
start going in the opposite directions. Jim hikes at the rate of
3 miles per hour. Sarah hikes at the rate of 2 miles
per hour. The perimeter of the lake is 10 miles. How long
will it be before they meet?
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A plane takes 6 hours to fly from San Francisco to
New York, and 5 hours to return back. The
airplane's airspeed is 550 miles per hour, from
New York to San Francisco. The reason why it takes the airplane
longer to go West than East is because of a wind with
constant wind speed. What is the speed of wind.
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