An aeroplane covers a certain distance at a speed of 240 km/h in 5 hours. To cover the same distance in 1 2/3 hours, it must travel a speed of

Question

An aeroplane covers a certain distance at a speed of 240 km/h in 5 hours. To cover the same distance in 1 2/3 hours, it must travel a speed of

Answer 1

d=r*t

d=240*5

d=1200 km

1200=r*(1 2/3)

1200=r*(5/3)

(3/5)(1200)=(3/5)(5/3)(r)

720=r

r=720 km/hr