with a hose
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Since you didn't write the Tony's time, let find for how long Jim and Sue can fill the pool together. Jim can fill 1/2 of the pool in 15 minutes. Sue can fill 1/3 of the pool in 15 minutes. Together can fill 5/6 of the pool in 15 minutes (1/2 + 1/3). In how many minutes (let's say x minutes) they will fill 1/6 of the pool? Since it is left a small piece of the pool to fill out, it will take a few minutes to fill it. So we can form a proportion such as: (5/6)/(1/6) = 15/x 5/1 = 15/x cross multiply 5x = 15 divide both sides by 5 x = 3 It will take 3 minutes to fill 1/6 of the pool. So that together they will fill the pool in 18 minutes (15 + 3).
1-2 days. Try to get 2 or 3 garden hoses to fill the pool faster. WARNING: If you get your water from a well fill your pool slowly over 2 to 3 days.
It took us from 5PM one day until 8PM the next to fill our pool. So, about 27 hours.
My pool which is a small to medium sized pool took about 2 days.
the rate that water is coming into the pool, is the amount of water in the pool (x) divided by the amount of time it take to fill the pool. x / 10 the rate to empty the pool is x / 15 the rate to fill the pool wile it is being emptied, is the rate filling the pool minus the rate emptying the pool. x / 10 - x / 15 simplified 3x / 30 - 2x / 30 this gives x / 30 divide the rate the pool is filling, by the amount of water. (x / 30) / x this gives a time of 30 hours to fill the pool.