Final answer:
You need 1 ¼ cans of PVC cement to complete the installation of 250 ft of PVC conductor, with the amount already expressed in its lowest term as a mixed number.
Step-by-step explanation:
To find out how much PVC cement you need for installing 250 ft of PVC conductor, let's break it down into 100 ft and 50 ft sections as described. Each 100 ft section takes ½ can of cement, and each 50 ft section takes ¼ can.
Since there are 250 ft of conductor, you have two full 100 ft sections and one 50 ft section. Calculating the cement used for the 100 ft sections: 2 sections × ½ can = 1 can. For the 50 ft section: ¼ can.
Combining these, you have 1 can for the hundred-foot sections plus ¼ can for the fifty-foot section, resulting in 1 ¼ cans of PVC cement needed.
Therefore, you would need 1 ¼ cans of PVC cement to install the conductor. Here, the number 1 ¼ is already in its lowest term as a mixed number.