Ndiba left the hardware store and drove toward the train station. Willie left one hour later driving 10 mph faster in an effort
to catch up to him. After three hours Willie finally caught up. What was Ndiba's average speed?
1 answer:
- Total timeof Ndiba =1+3=4hours

Let
- Ndibas speed be x
- Willies speed=x+10
Both travelled same distance



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