A rectangular floor that measures 8 meters by 10 meters is to be covered with carpet squares that each measure 2 meters by 2 meters. If the carpet squares cost $12 a piece, what is the total cost for the number of carpet squares needed to cover the floor?

$ 200

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$ 240

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$ 480

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$ 960

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$ 1920

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Solution

The correct option is B $240 A r e a o f g i v e n r e c t a n g u l a r f l o o r =$ 8 \times 10 = 80 $ sq. m
Area of each carpet square = $2 \times 2 = 4$ sq.m.
Total number of carpet squares needed to cover the floor = $\frac{80}{4}$ = $20$
Total cost for these $20$ carpet squares = $20 \times 12$ = 240$
(option B)

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A rectangular floor that measures 8 meters by 10 meters is to be covered with carpet squares that each measure 2 meters by 2 meters. If the carpet squares cost $12 a piece, what is the total cost for the number of carpet squares needed to cover the floor?

The correct option is B 240Areaofgivenrectangularfloor= 8 \times 10 = 80 $ sq. mArea of each carpet square = 2×2=4 sq.m.Total number of carpet squares needed to cover the floor = 804 = 20Total cost for these 20 carpet squares = 20×12 = 240$(option B)