Question

a train covered a fixed distance at a uniform speed. If the train had been 30km/hr faster, it would have taken 2 hours less tham the scheduled time. if the train was slower by 15km/hr, it wouldve taken 2 hrs more. Find the distance

Answer 1

a train covered a fixed distance = 30×2=60
the scheduled time = 15×2=30
60÷30 = 20

Answer 2

$30(x - 2) = 15(x + 2)$
30(x-2)=15(x+2)
30x-60=15x+30
30x-15x=60+30
15x=90
x=90÷15
x=6
30/2×6
15×6
90 km