



 
H MJ, The key here is that "distance equals time times rate." For the slower trip let the time be $t$ hours and the rate be $r$ km/hr. You know the distance is 60 km so write the expression for "distance equals time times rate." For the faster trip what is the rate, distance and time? Write the expression for "distance equals time times rate." Solve each of the expressions for $t,$ set them equal and solve for $r.$ Penny  


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