Question

a lawn is 80m long and 60m wide .there is a swimming pool of length 20m×6m is this lawn . what will be the cost of putting grass in the remaining part of the field at rs 30 per square metet?

Answer 1

lawn........80×60= 4800 m ²
swimming pool.......20×6=120
lawn - swimming pool
4800-120= 4680 m²
4680×30=140400rs

Answer 2

The cost of putting grass in the remaining part of the field = Rs 1,40,400

• Area of a rectangle = length * breadth
• Area of the lawn = 80 m * 60 m

                                    = 4800 square meter

• Area of the swimming pool = 20 m * 6 m

                                                      = 120 square meter

• Remaining area of lawn = (4800 - 120) square meter

                                                = 4680 square meter

• Cost of putting grass in the remaining part of the field = 4680 * 30

                               = Rs 1,40,400