Question

Mr. Malkani is constructing a building. The floor of the building consists of $6000$ tiles which are rhombus shaped and each of its diagonal are $90\text{m}$ and $60\text{m}$ in length. Find the total cost of polishing the floor, if the cost is $\text{Rs.}5/{\text{m}}^2$.

Answer 1

Area of $1$ Rhombus shape tile $=\frac{1}{2}\times 90\times 60$

$=2700{\text{m}}^2$

Area of $6000$ Rhombus shape tiles $=6000\times \frac{1}{2}\times 90\times 60$

$=6000\times 2700{\text{m}}^2$

Total Cost of Polishing $=6000\times 2700\times 5=\text{Rs.}81,000,000$