Question

A banquet hall is 22 m long and 16.5 m broad. A carpet is laid inside the hall leaving a margin of
75 cm from the walls all around. Find the area of the carpet. If the width of the carpet is 85 cm, find its cost
at the rate of 50 per m.
10. A room has a floor measuring 15 m by 8 m. It has to be covered with tiles of size 50 cm by 25 cm How many​

Answer 1

Answer:

18088

Step-by-step explanation:

Length = 22 m and Breadth = 16.5 m

so,

The area of banquet hall = L × B = 22 × 16.5 = 363 m²

Margin of carpet = 75 cm = 0.75 m

Area of carpet = (22 - 2 × 0.75) (16.5 - 2 × 0.75)

= (22 - 1.5) (16.5 - 1.5)

Area of the carpet = 20.5 × 15 = 307.5 m²

Portion uncovered = 363 - 307.5= 55.5 m²

A meter length of the carpet = 1 m × 0.85 m = 0.85m²

307.5/0.85= 361.76m of carpet

Cost of laying carpet rate = Rs.50 per meter

Cost of laying carpet = 361.76 × 50

= Rs.18088