Question

During the dry season, Village get its water from the reservoir. After six weeks there 16,800 gallons left in the reservoir. After 10 weeks, there are 5600 gallons left. All the water is used in the dry season. What is the total number of weeks in the dry season?

Answer 1

After 6 weeks........................16,800 gallons left
         10 weeks.......................5,600 gallons
this means that in 4 weeks they used 16,800-5,600=11,200 gallons
11200/4=2,800/week
5600/2800=2
10+2=12
we have 12 weeks of dry season