Question

There is a square park in the society of side $7m$. What is the cost of laying bricks in the field at Rs. $10/m^2.$

• A. 470
• B. 440
• C. 490
• D. 500

Answer 1

The correct option is C

490

Total cost of laying bricks in the field $=$ area of the field $\times$ rate of laying bricks in the field

Now, area of the field $=\text{side}\times \text{side}=7\times 7=49m^2$

$\Rightarrow$ Cost of laying bricks in the field $=49\times 10=\text{Rs.}490$