It took Fred 17 days to save $36.55. At that rate, how long would it take him to save $70.95?

Fred would take 33 days to save $ 70.95.

Step-by-step explanation:

The number of days () is directly proportional to the quantity of money saved (), in monetary units, then we can calculate the time taken to save $ 70.95 by simple rule of three:

Fred would take 33 days to save $ 70.95.

Assuming everyone in the family showers only once a day,time taken by 1 person to shower = 11*60+15= 675 secondstime taken by 5 people = 5*675 = 3,375 stime taken by the family in a week = 7*3,375 =23,625 samount of water used in a week = 23,625/(10*60) = 39.375 = 40 liters