Question

The Central hall of a school is 22 m long and 15.5 wide, a carpet is to be laid on the floor leaving a strip of 75cm width from the walls uncovered find the area of the carpet and area of the strip left uncovered.

Answer 1

Answer:

QUESTION:

The Central hall of a school is 22 m long and 15.5 wide, a carpet is to be laid on the floor leaving a strip of 75cm width from the walls uncovered find the area of the carpet and area of the strip left uncovered.

SOLUTION:

Length of a central hall of a school = 22 m

Breadth of a central hall of a school = 15.5 m

Area of hall = 22×15.5 = 341 m²

Width=75 cm=0.75 m

Length of the carpet= 22-2(0.75)

= 22-1.5

= 20.5 m

Breadth of the carpet= 15.5 - 1.5

= 14 m

Area of the carpet= l×b = 20.5 ×14 = 287 m²

Area of the strip left uncovered= 341-287 = 54 m²

$\bf \color{green}{ THANK\: YOU}$

Answer 2

school

=

4

5

×14.75

=18.4375m

2

areaofstrip

15.5×2−18.437=12.563m

2

costofcarpet

=

100

(200−82)

×

100

(1550−82)

×18

=Rs.5612.49