A hall is 25m long and 18m wide. A path 1.5m wide is constructed around it. Calculate the cost of cementing at the rate of  rupees 20.50 per square metre

Asked by sonidevi7481881387 | 31st Dec, 2019, 08:48: PM

Expert Answer:

Length of the hall = 25 cm
Breadth of the hall = 18 cm
A path 1.5 wide is constructed around the hall
Length of the hall including path = 25 + 1.5 +1.5 = 28 cm
Breadth of the hall including path = 18 + 1.5 +1.5 = 21 cm
Total area = 28 x 21 = 588 cm2
Area of the hall = 25 x 18 = 450 cm2
Area of the path = Total area - area of the hall = 138 cm2
Cost of cementing = 138 x 20.50 = Rs. 2,829

Answered by Renu Varma | 1st Jan, 2020, 11:18: AM