A hallway measuring 90 feet x 7 feet requires 1/2 a fluid ounce of cleaning solution per square foot. How much cleaning solution is required to clean the hallway ?

Question

63 fluid ounces

315 fluid ounces

630 fluid ounces or

1260 fluid ounces

Answer 1

Area of hallway=90×7=630 sq ft.

Each square foot requires ½fl oz, so 630/2=315fl oz of cleaning fluid are needed. Answer B (second answer option).