Question

A lift company installs service lifts in new buildings. The number of meters of cable needed for a lift is 12 times the number of floors in the building. Plus an extra 16 meters needed to go into the machinery. Which of the following function best describes how many meters of cable are needed to install the lift if there are F floors in the building ?

• A. y = 12F + 16
• B. y = 16F + 12
• C. y = 12F + 12
• D. y = 16F + 16

Answer 1

The correct option is A y = 12F + 16

If the building has F floors, the amount of cable needed will be 12F & then we have to add 16 to this

We get y = 12F + 16

Hence, option A is correct.