Question

America, a person uses about 100 gallons of water each day, which is equal to 1,600 water-filled drinking glasses. How many water-filled drinking glasses would 281 Americans fill in a weeks time?
a.
449,600 water-filled glasses
b.
28,100 water-filled glasses
c.
3,147,200 water-filled glasses
d.
196,700 water-filled glasses

Answer 1

One person uses 1,600 glasses per day. For 281 people for 7 days:
1600 × 281 × 7 = 449,600 × 7 = 3,147,200.
Answer: c. 3,147,200 water-filled glasses.