Question

A square park of side 7 m has to be paved with bricks. If the cost of laying bricks is ₹$10/m^2$, then the cost of laying the bricks is ___.

• 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 \(= 49 \times 10= \text{₹}490\)