Question

3. A rectangular lawn of length 50m and breadth 25m is to be surrounded externally by a path which is 2m wide. Find the area of path. Also, find the cost of graveling them at 15 per square metre. ​

Answer 1

Answer:

Step-by-step explanation:

length(l) of lawn = 50m

  breadth(b)of lawn = 36m

  width of path = 2m

  so the,

    length(L) of outer rectangle = 50+2+2 = 54m

    breadth(B) of outer rectangle = 36+2+2 = 40m

                   

                 Area of path = Area of outer rectangle - Area of inner lawn

                                      = L×B - l×b

                                      = 54×40 - 50×36

                                      = 2160 - 1800

                                      =360m^2

                Cost of levelling path = 360×3.25

                                                  =Rs.1170