Answer:
a)7.5 minutes b)1.33 km
Explanation:
For the first part of the question, if a kangaroo hops 2 km in 3 min , at this rate the kangaroo hops 1 km in =3/2 min (1.5 min). Now if the kangaroo takes 1.5 min to travel 1 km , multiply it by 5 to get the time taken to travel 5 km which results in 5*1.5 = 7.5 min.
For part b, for the given rate in 3 minutes the kangaroo travels 2 km , now if we divide 2/3 we get the distance traveled in 1 min which is 0.33 km, so to get the km traveled in 2 minutes just multiply the km by 2 which gives us 0.33*2=1.33 km.