Question

a hallway is 8 m. long and 90 cm wide. if carpet costs ₹4 sq. cm, how much will it cost to carpet the hallway ?

Answer 1

Length of hallway =8m= 800cm
Wide of hallway =90cm
Area of hallway =800 X 90= 72000cm^2
Carpet cost =4cm^2
For 72000cm^2
=72000 X 4 =288000₹

Answer 2

Length of hallway =8m= 800cm

Wide of hallway =90cm

Area of hallway=length×breadth

$area \: of \: hallway = 800 \times 900 = 72000 {cm}^{2}$

$carpet \: cost = 4 {cm}^{2}$

$for \: 72000 {cm}^{2}$

=72000 X 4 =288000₹

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