Question

A verandah of width 2.25 m is constructed all along outside a room which is 5.5 m long and 4 m wide. Find:

(i) the area of the verandah.

(ii) the cost of cementing the floor of the verandah at the rate of ₹ 200 per m2

Answer 1

Answer:

grandeur of 2.25 is constructed all along outside a room which is 5.5 metre long and 4m wide find the area of the verandah and second answer is the cost of cementing the floor of the verandah at the rate of rupees 200 per square metre

Answer 2

Answer:

Length of the room = 5.5 m

Breadth of the room = 4 m

∴ Area of the room = l × b = 5.5 m × 4 m = 22 m2

Width of the verandah = 2.25 m

Length of the room including verandah = 5.5 m + (2.25+ 2.25 )m =

10 m

Breadth of the room including verandah = 4 m + (2.25 + 2.25) m =

8.50 m2

Area of the room including verandah = l × b = 10 m × 8.50 m = 85

m^2

(i) Area of the verandah = Area of the room including verandah Area of the room

=85 m^2 – 22 m^2 = 63 m^2

(ii) Given, the cost of cementing the floor of the verandah at the rate of

₹ 200 per m ^2

Then the cost of cementing the 63 m ^2

area of floor of the verandah = 200 × 63

= ₹ 12600