Question

Prem covered a distance at some speed .Had he moved 3 km per hour faster , he would have taken 40 minutes less .If he had moved 2 km per hour slower, he would have taken 40 minutes more. What will be the distance [in km]

Answer 1

Answer:

10/3 = 3.33 km

Step-by-step explanation:

(s

$\frac{x + 3 }{3} \times 40 = \frac{x - 2}{2} \times 40 = d \\ where \: x \: is \: actual \: speed \: and \: d \: is \: distance \\ by \: solving \: these \: equation \: x \: is \: 12 \: kmph \\ and \: d \: is \: 3.33km$