If 20 bricks, each of height 5 cm, are arranged in a single line one over the other, what will be the height of a wall?
A
120 cm
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B
150 cm
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C
100 cm
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D
90 cm
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Solution
The correct option is C 100 cm Height of one brick = 5 cm Number of bricks = 20 They are arranged one above the other. So, the height of the wall = Height of one brick × Number of bricks = 5 × 20 cm = 100 cm