A pilot travel is the first 1500 miles of a 3000 mile journey with the average speed of 400 mph at what speed must a pilot travel the remai

Question

A pilot travel is the first 1500 miles of a 3000 mile journey with the average speed of 400 mph at what speed must a pilot travel the remaining 1500 miles to record an average speed of 500 mi./ hours for the entire flight

0

Answers ( No )

    0
    2021-09-06T06:34:44+00:00

    Answer: Speed at which remaining 1500 miles is covered is 666.67 mph.

    Explanation:

    Since we have given that

    Total distance covered by a pilot = 3000 miles

    Speed at which first 1500 miles is covered = 400 mph

    Average speed to covered the whole distance = 500 mph

    Let the speed at which remaining 1500 miles is covered be y

    As we know the formula for “Average Speed” i.e.

    \text{ Average Speed}=\frac{2xy}{x+y}

    Now, we put the value of speed in this equation,

    500=\frac{2\times 400\times y}{400+y}\\\\500(400+y)=800y\\\\200000+500+500y=800y\\\\200000=800y-500y\\\\200000=300y\\\\y=\frac{200000}{300}=666.67\ mph

    Hence, Speed at which remaining 1500 miles is covered is 666.67 mph.

Leave an answer

Browse
Browse