Question

A Bus takes 3 hours to reach the desired destination by travelling at the speed of 80 Km/h. How much time will it take when the bus travels at the speed of 40km/h. (direct and inverse) ​

Answer 1

this case is of inverse proportion

if the speed increase time time req decreases

so k= xy

= 80 × 3 = 240

k = 240

second condition

x = 40

so 240 = 40 × y

y = 6

so now it will take 6 hrs