Problema Solution
train travel 150 mile, same time plane travels 400 miles. if speed of train is 20 miles per hour less than 3 times speed of train. find both speeds
Answer provided by our tutors
Let t be the time;
rate of train = 150/t
rate of plane = 400/t
Fro the given, 150/t = 3(150/t) - 20
-2(150/t) = -20
150/t = 10
t = 15
Rate of train: 150/15 = 10 mph
Rate of plane: 400/15 = 26 2/3 mph or about 26.667 mph