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On a scale drawing, a rectangle 1 inch by 1 and 1/3 inches

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On a scale drawing, a rectangle 1 inch by 1 and 1/3 inches

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On a scale drawing, a rectangle 1 inch by 1 and 1/3 inches represents the floor of a room and the indicated scale is 1 inch equals 15 feet. How many square tiles 6 inches on a side will be needed to cover this floor? (1 foot = 12 inches)?

A) 40
B) 70
C) 120
D) 700
E) 1,200

E

Source: Official Guide 2020

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If the scale is 1 in = 15 ft, then the dimensions of the floor = 15x20 ft.



If each tile is 6 in x 6 in, that's 1/2 ft x 1/2 ft square. So every 1 sq feet of floor would take 4 tiles.


15 ft x 20 ft = 300 sq ft

300 sq ft x 4 tiles per sq ft = 1200 tiles total

The answer is E.

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AbeNeedsAnswers wrote:
On a scale drawing, a rectangle 1 inch by 1 and 1/3 inches represents the floor of a room and the indicated scale is 1 inch equals 15 feet. How many square tiles 6 inches on a side will be needed to cover this floor? (1 foot = 12 inches)?

A) 40
B) 70
C) 120
D) 700
E) 1,200

E

Source: Official Guide 2020
If the scale of the drawing is 1 inch = 15 feet, then the room has dimensions of 15 ft by 20 ft. Therefore, the area of the room is 15 x 20 = 300 sq. ft. Since each tile is 1/2 x 1/2 = 1/4 sq. ft, we need 300/(1/4) = 300 x 4 = 1,200 tiles to cover the floor of the room.

Answer: E

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scott@targettestprep.com



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