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Properties of Ratio

The height of...

Question

The height of a brick is 9 cm. bricks are stacked, to reach upto a height of 810 cm.

A

9

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B

50

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C

90

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Solution

The correct option is C 90
Total height to achieve = 810 cm
Height of one brick = 9 cm
Number of bricks needed = $\frac{810}{9}$
= 90

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