Question

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Answer 1

Answer:

A. 4.2 times

Step-by-step explanation:

Chlorine level of the pool as adjusted by Paula = 6.3 parts per million

Ideal Chlorine level as suggested by the magazine = 1.5 parts per million.

Thus, the number of times the ideal level of Chlorine that the current level is = current level ÷ ideal level

= $\frac{6.3}{1.5} = 4.2$

The current Chlorine level is 4.2 times the ideal Chlorine level.