1. A car travels 20 kph faster than a truck. The car covers 480 km in two hours lessthan the time it takes the truck to travel the same distance. How fast does the car travel?
A. 44 kph B. 60 kph C. 80 kph D. 140 kph21. A 12 cm by 16
2. it takes mary 3 hours more to do a job than it takes jane. if they work together they can finish the same job in 2 hours. how long would it take mary to finish the job alone
a. 3 b. 5. c. 6 d.8
pls help me and show me computation