Question

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

Answer 1

Fred would take 33 days to save $ 70.95.

Explanation:

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

`t = 17\,d\,* (\$\,70.95)/(\$\,36.55)`

`t = 33\,d`

Fred would take 33 days to save $ 70.95.