A jet traveling 980 mph takes eight hours to make a Washington DC to Paris crossing. If another jet makes the same trip in four hours, how fast does it fly?
Answer

1960 mph

1470 mph

490 mph

720 mph

Question

A jet traveling 980 mph takes eight hours to make a Washington DC to Paris crossing. If another jet makes the same trip in four hours, how fast does it fly?
Answer
		
1960 mph
		
1470 mph
		
490 mph
		
720 mph

anonymous · Answer

@redshift what would be the answer than?

anonymous · Answer

I don't want to just give it to you. I want to help you come to the answer yourself.

zzr0ck3r · Answer

err i should have said notice the distance is unknown

anonymous · Answer

@redshift the answer would be 1470?

anonymous · Answer

Multiply 980 mph by 2

anonymous · Answer

Thanks! (:

anonymous · Answer

That answer is not correct.

There are a few ways you can do this. If you see that it does the same trip in half the time then it must be going twice as fast...

anonymous · Answer

Pretty much the second plane flies twice as fast. So multiply the given speed by 2. Its really simple.