Question

The charge of an electrician includes the cost of materials for the work to be done plus labour charges per hour and also the tax on the cost of material. The total cost of completing a work that takes $h$ hours is given by the function $B\left(h\right)=47h+2.88+72$, then the term $47$ represents

• A. The hourly rate
• B. The site visit fee
• C. The cost of the materials, including tax
• D. The cost of the materials, not including tax

Answer 1

Answer: (A)

The hourly rate

The total cost will include the labour charges per hour and the cost of the material, along with the taxes.

Since, $h$ is the number of hours he worked, $47$ represents hourly rate of labour charge for working.

$72$ represents the cost of materials.

The term $2.88$, thus represents the tax of tax on cost of material.