Mathematics · Speed, Time and Distance

A bike race is conducted on a 300 km track, in which three bikes A, B, and C participate. Their initial speeds are 50 km/h, 40 km/h, and 60 km/h respectively. After the first 2 hours of the race, their speeds change as follows: * Speed of bike A becomes 25% higher than the speed of bike C (after 2 hours). * Speed of bike B becomes 10% higher than its initial speed. * Speed of bike C becomes 80% of the initial speed of bike A. Find the difference in time taken by the bikes that finish in the 1st and 2nd positions.