A swimming pool whose volume is 10,000 gal contains water that is 0.02% chlorine. Starting at t=0, city water containing 0.001% chlorine is pumped into the pool at a rate of 5 gal/min. The pool water flows out at the same rate. a) What is the percentage of chlorine in the pool after 1 hour? b) When will the pool water be 0.002% chlorine?
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
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Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
A swimming pool whose volume is 10,000 gal contains water that is 0.02% chlorine. Starting at t=0, city water containing 0.001% chlorine is pumped into the pool at a rate of 5 gal/min. The pool water flows out at the same rate.
a) What is the percentage of chlorine in the pool after 1 hour?
b) When will the pool water be 0.002% chlorine?
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