Quantitative - Mathematics - Solid Geometry:

Perimeter and Area

MCQ - 32-11884

Question:

Idrees wants to paste wallpaper on wall of his room. The wall is 4 meters and 50 cm in length and 3 meters and 50 cm in height. But the wall should be covered completely only by square pieces of wallpaper having same size. What is the number of maximum sized wallpaper squares needed to cover the walls completely?

8
15.75
63
15.75

Correct Answer: C

Explanation:

Wall can be covered only by using square sized wallpaper pieces.

Different sized squares are not allowed.

Length = 4m 50cm = 450cm; Height = 3m 50cm = 350cm

Maximum square size of possible means HCF of 350 and 450

We can see that 350 and 450 can be divided by 50.

On dividing by 50, we get 7 and 9.

Since we cannot divide further, HCF = 50 = size side of square

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131 MCQ for effective preparation of the test of Perimeter and Area of Solid Geometry section.

Read the MCQ statement: Idrees wants to paste wallpaper on wall of his room. The wall is 4 meters and 50 cm in length and 3 meters and 50 cm in height. But the wall should be .... e walls completely? , keenly and apply the method you have learn through the video lessons for Perimeter and Area to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 32-11884.

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Solve the question for MCQ No. and decide which option (A through D/E) is the best choice to answer the MCQ, then click/tap the blue button to view the correct answer and it explanation.

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