Question

A science teacher collects 18 pints of lake water for a lab she is teaching. The lab requires each student to use 4 fluid ounces of lake water. If 68 students are participating, how many pints of lake water will the teacher have left over?

Answer 1

1 pint (or 16 oz)

Explanation:

1. convert the amout of pints into ounces (multiply 18 (pints) times 16 oz in a pint) 18 * 16 = 288 total ounces

2. determin how many ounces are used by students (multiply 68 (students) by 4 oz) 68 * 4 = 272 ounces uses

3. find the difference (subtract 288-272 = 16 oz left over)

16 oz = 1 pint