Problema Solution
With the help of a tail wind, a plane flew 378 kilometers in 3/4 of the time that a second place flew 456 km in the opposite direction. Find the rate of the tailwind if each plane can fly 600 kilometers per hour in still air
Answer provided by our tutors
Let t be time taken for second plane to fly 456 km in opposite direction.
Then,
3/4t will be time taken by first to fly 378km in initial direction.
Let
rate of tailwind be x km/h
378/(3/4*t)=x+600 ---- (i)
456/t=600-x (ii)
Dividing (i) by (ii)
21/19=(600+x) /(600-x)
Means 600=20*x
x=30 km/h