SOLUTION: A man travels 180km from his farm to town, In a loaded truck.on return journey he is able to travel 30km\h faster having unloaded his truck.he saves 1hour on return journey by trav

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: A man travels 180km from his farm to town, In a loaded truck.on return journey he is able to travel 30km\h faster having unloaded his truck.he saves 1hour on return journey by trav      Log On


   

Question 1123747: A man travels 180km from his farm to town, In a loaded truck.on return journey he is able to travel 30km\h faster having unloaded his truck.he saves 1hour on return journey by travelling faster.


Table:
Under journey ke:from farm 2 town
From town to farm
.
distance,: 180km from farm to town 
Speed?
Time: 180 over x
From town to farm: distance??
Speed:x + 30
Time??
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
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A man travels 180km from his farm to town, In a loaded truck.on return journey he is able to travel 30km\h faster having unloaded his truck.he saves 1hour on return journey by travelling faster.

Table:
Under journey ke:from farm 2 town
From town to farm
.
distance,: 180km from farm to town
Speed?
Time: 180 over x
From town to farm: distance??
Speed:x + 30
Time??
------------------- 
                    SPEED           TIME         DISTANCE

FARM to TOWN         x              180/x           180

TOWN to FARM        x+30           180/(x+30)       180

Difference                           1

Find the speed of truck fully loaded when going from farm to town using 180%2Fx-180%2F%28x%2B30%29=1 and solve for x.
You can then use this to find the two times.