Question

The time t required to empty a tank varies inversly as the rate r of pumping. If a pump can empty a tank in 35 min at the rate of 800kL per minute, how long will it atake the pump to empty the same tanks at the rate of 1400kL per minute?

Answer 1

Answer: It will take the pump 20 min

Step-by-step explanation: Please see the attachments below