Question

a verandah 1.25m wide is constructed all along the outside of a room 5.5m long 4m wide.Find the cost of cementing the floor of this verandah at the rate of rupees 15 per sq.m​

Answer 1

Answer:

Area of the room is given by 4 * 5.5 = 22m2

Area of the verandah with room is (5.5 + 1.25 + 1.25) * (4 + 1.25 + 1.25) = 8 * 6.5 = 52

Area of only verandah = 52 - 22 = 30m2

Cost of cementing the floor of the verandah = 15 Rs/m2

Total cost of cementing 30m2 verandah = 30 * 15 = 450 Rs

Step-by-step explanation:

PLEASE MARK THIS ANSWER BRAINLIEST

Answer 2

Answer:

Step-by-step explanation:

Given :-

Length of room = 5.5 m

Width of room = 4 m

Width of verandah = 1.25m

Cost of cementing of verandah = Rs 15 per m²

To Find :-

Area of verandah

Cost of cementing of verandah

Formula to be used :-

Area of Rectangle = Length × width

Solution :-

Area of the room = Length × width

Area of the room = 4 × 5.5 = 22 m²

Area of the verandah with room

= (5.5 + 1.25 + 1.25) × (4 + 1.25 + 1.25)

= 8 × 6.5

= 52

Area of verandah = Area of room with verandah — Area of room  

Area of verandah = 52 m² - 22 m²

Area of verandah = 30 m²

Cost of cementing of verandah = Area × Rate

Cost of cementing of verandah = Rs 15 × 30m²

Cost of cementing of verandah = Rs 450

Hence, the cost of cementing the floor of this verandah is Rs 450.