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Q.

If p squares of each side 1mm makes a square of side 1 cm, then p is equal to:


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a

10

b

100

c

1000

d

10000 

answer is B.

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Detailed Solution

Given, p squares of each side 1mm makes a square of 1 cm.
We know that the area of a square is the square of its side length.
Now, as it is given that the ‘p’ squares constitute the square table, this implies that the area of all such p squares will be the same as the area of the bigger square.
Area of small squares of side 1 mm = 1  mm 2
Area of the big square of side 1 cm = 1  cm 2 = 100 mm2 (as 1 cm = 10 mm)
So,
p x Area of small squares = Area of big square
p×1=100 p=100
Therefore, the value of p is found as 100.
Hence, the correct option is (2).
 
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If p squares of each side 1mm makes a square of side 1 cm, then p is equal to: