If you fly 20 NM at 40 knots, how long does it take?

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Multiple Choice

If you fly 20 NM at 40 knots, how long does it take?

Explanation:
Time is found by dividing distance by speed. At 40 knots you cover 40 nautical miles in 60 minutes, so to cover 20 nautical miles you need 20/40 = 0.5 hours. Half an hour equals 30 minutes, so it takes 30 minutes.

Time is found by dividing distance by speed. At 40 knots you cover 40 nautical miles in 60 minutes, so to cover 20 nautical miles you need 20/40 = 0.5 hours. Half an hour equals 30 minutes, so it takes 30 minutes.

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