Question

8, Find the cost of tiling a rectangular plot of land
400 m long and 200 m wide at the rate of 12 per
hundred square metre.
9. A table top measures 3 m by 1 m 50 cm. Find its
area in square metre.​

Answer 1

8. Length- 400m

Breadth- 200m

Cost- 12 per square metre

$area = \: 400m \times 200m$

$= 80000 {m}^{2}$

Now,

$\frac{80000}{100} = 800$

$12 \times 800$

$= 9600$

Hence the cost of tiling the rectangle is ₹9600.

9. Length - 3m

Breadth - 1.5m

$area = 3m \times 1.5m$

$= 4.5 {m}^{2}$