Question

an express train takes 1 hour less than a passenger train to travel 132 km between Mysore and Bangalore if the average speed of the express train is 11 km per hour more than that of the passenger train find the average speed of the two trains

Answer 1

Step-by-step explanation:

method 1 :

passenger train speed. = x

time taken by paseenger - time taken by express = 1

132/ x - 132/ x + 11 = 1

x ( x + 11) = 132 x 11

x^2 + 11x - 1452 = 0

x^2 + 44x - 33x - 1452 = 0

hi

x = 33 -- paseenger speed

express speed = 33+ 11 = 44