Question

if 4 goats or 6 sheep can graze a field in 40 days how many days will the other can empty it in 30 hours . The tank being empty and if both taps are opened together how long will it take for the tank to be half full

Answer 1

Answer:

If 4 goats or 6 sheep can graze a field in 40 days, how many days will 4 goats and 14 sheep take to graze the same field? = \frac{6 \times 40}{20} days = 12 days. A tap can fill a tank in 20 hours, while the other can empty it in 30 hours.