Question

A garden 15 m long and 80 m wide has road 4m wide all around on outside. Find cost of paving road at rate of 120 per square meter..

Answer 1

area of garden =l×b
=15 ×80 =1200 m
outside road length 15 +8 =23
breadth = 80+8=88
road = l × b =88×23= 2024
total cost = 2024×120 =242180

Answer 2

length of the garden including the road=80+4+4=88

breadth of the garden including the road=15m+4m+4m=23

area of the garden including the road

=LxB=88x23=2024 square m

area of the garden=LxB=15x80=1200 square m

area of the road = area of the garden including the road-area of the garden

area of road = 2024-1200=824 square m

rate of paving = 120 per square m

cost of paving = 824x120=98880

Hope it will help u

tell me if it is wrong