Question

A house 20m long and 15m wide is surrounded by a verandah of uniform width of 3m. Find the cost of flooring the verandah at Rs 200 per square metre....
please give the answer in short short short but give full method​

Answer 1

Answer:

we measure the area of veranda byy taking width in addition of length and breadth- house area

it means

area of veranda =outer rectangle-inner rectangle

→area=(20+3+3)(15+3+3)-20×15

→area=26×21-300

→area= 546-300

→area=246 m²

so the cost of flooring =246×200=49200 rs.

Step-by-step explanation:

$Hope \: it \: helps.$

Answer 2

Answer:-

Total cost of flooring will be 49200 rupees.

Solution:-

Given:-

Length of house = 20 m

Breath of house = 15 m

Area = 20×15 = 300 m²

Uniform width = 3 m

So:-

Length of veranda = 20 + 2 × 3 = 26m

Breath of veranda = 15 + 2 × 3 = 21m

Area = 26×21 = 546 m²

Area of rectangle = l × b

Area of surrounding veranda = Area of veranda part - area of house

= 546- 300

= 246 m²

Therefore:-

Cost of flooring 1 m² = 200 rupees

Cost of flooring 246 m² = 246×200 = 49200 rupees

Hence:-

Total cost of flooring will be 49200 rupees.