InterviewSolution
 Saved Bookmarks
    				| 1. | 
                                    A path 5 m wide runs along inside a square park of side `100 m.` Find the area of the path. Also find the cost of cementing it at the rate of `Rs250` per `10m^2.` | 
                            
| 
                                   
Answer» AB=PQ-5-5=90m BC=90m Area of path=(100*100)-(90*90) =10000-8100 =1900`m^2` Cementry cost=1900*25=47500Rs.  | 
                            |