If two planes leave the same airport at 1:00 PM, how many miles apart will they be at 3:00 PM if one travels directly north at 150 mph and the other travels directly west at 200 mph?

dsuc.created: 7 years ago | dsuc.updated: 1 week ago

dsuc.updated: 1 week ago

50 miles

100 miles

500 miles

700 miles

None of these

Oil & Gas Co. Ltd Petroleum Exploration Co - Officer - 17.04.2009 গণিত ঐকিক নিয়ম (Unitary method)

dsuc.explanation

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common.best_ans:

The paths of the planes create right triangle, with the distance between them equaling the hypotenuse of the triangle.

The distance of the first plane from the airport at 3:00 PM (2 hours after departure) is 2 x 150 = 300.

The distance of the second plane from the airport at 3:00 PM (2 hours after departure) is 2 x 200 = 400.

Thus, the distance between the two planes is 500, (since we have a 300 - 400 - 500 right triangle.)

7 years ago

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Md Azizur Rahman

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