Question

a tap fills a tank in 12 minutes if it fills at the rate of 90 litres a minute in how much time will a tap fill the tank if it fills at the rate of 140 litres a minute​

Answer 1

Answer:

6hours

Step-by-step explanation:

Number of liters Tap fills water per hour 20

Number of liters leak fills water per hour 5

Net water filled by tap per hour 15

To fill 90 liters, it takes 90 / 15 = 6 hours

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