swabytonique929 swabytonique929

04-07-2020
Mathematics

contestada

3 pumps, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?

a) 8
b) 9
c) 10
d) 11
e) 12

Respuesta :

surakshya666 surakshya666

04-07-2020

In my view option D but it can be wrong

Answer Link

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