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A farmer has two tractors, A and B. The tractors working together can plough a farm in 2½ hours. One day the tractors started to...

A farmer has two tractors, A and B. The tractors working together can plough a farm in 2½ hours. One day the tractors started to plough the farm together. After one hour ten minutes, tractor B broke down but A continued alone and completed the job after a further four hours.
(a) The fraction of the job done by tractor A after tractor B broke down.
(b) The time each tractor working alone would have taken to plough the farm.

Answers

Kavungya answered the question on September 18, 2019 at 05:55

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Next: A point P divides line AB in the ratio 7:-5 where A and B are the points A(2,5,4) and B(-4,7,2). Find the co-ordinates of P....

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