How many metres of carpet 63 cm wide will be required to cover the floor of a room 14 m by 9 m?

(a) 200 m
(b) 210 m
(c) 220 m
(d) 185 m

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Solution

(a) 200 m

Area of the floor of a room = 14 m × 9 m = 126 m²

Width of the carpet = 63 cm = 0.63 m (since 100 cm = 1 m)

∴ Required length of the carpet = $\frac{Area of the floor of a room}{Width of the carpet}$
= $(\frac{126}{0.63}) m = 200 m$

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How many metres of carpet 63 cm wide will be required to cover the floor of a room 14 m by 9 m? (a) 200 m (b) 210 m (c) 220 m (d) 185 m

(a) 200 m Area of the floor of a room = 14 m × 9 m = 126 m2 Width of the carpet = 63 cm = 0.63 m (since 100 cm = 1 m) ∴ Required length of the carpet = Area of the floor of a roomWidth of the carpet = 1260.63 m=200 m

How many metres of carpet 63 cm wide will be required to cover the floor of a room 14 m by 9 m?

(a) 200 m
(b) 210 m
(c) 220 m
(d) 185 m

(a) 200 m

Area of the floor of a room = 14 m × 9 m = 126 m²

Width of the carpet = 63 cm = 0.63 m (since 100 cm = 1 m)

∴ Required length of the carpet = $\frac{Area of the floor of a room}{Width of the carpet}$
= $(\frac{126}{0.63}) m = 200 m$