Working together, 2 details of airforce reservists can load the C-130 aircraft with relief supplies for hurricane victims in six hours. Working alone, first detail can load plane in 2 hours less time than 2nd detail can when working alone. How long it take for 2nd detail, working alone, to load plane?
At the juice processing plant, one pipe can fill the storage tank with cranberry juice in 2 hours. Another pipe can fill same tank with apple juice in three hours. If both pipes are open, how long it takes to fill tank cran-apple juice? Twice the number plus 1 is divided 1 less than half number. Result is 5. Determine the number?