Question

An airplane flies from Indianapolis to Los Vegas at an average rate of 320 mph. The plane then returns to Indy averaging 280 mph. The total travel time is 3 hours. Find the flying time from Indianapolis to Los Vegas.

Answer 1

Let's use the formula: time = distance / speed.

Let's assume the distance from Indianapolis to Las Vegas is D miles.

The time it takes to fly from Indianapolis to Las Vegas at 320 mph is D / 320.

The time it takes to fly from Las Vegas to Indianapolis at 280 mph is D / 280.

The total travel time is 3 hours, so we have the equation: D / 320 + D / 280 = 3.

Now, we can solve for D and find the flying time from Indianapolis to Las Vegas.