A submarine is scaled down to $\frac{1}{100}$ times for making a model. If the length of the submarine in the scaled down model was $100 c m$ , what is the original length of the submarine?

100 c m

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500 m

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100 m

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500 c m

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Solution

The correct option is D $100 m$
$L = O r i g i n a l L e n g t h$
$l = S c a l e d D o w n L e n g t h = 100 c m = 1 m$

$\frac{l}{L} = \frac{1}{100}$
$\frac{1 m}{L} = \frac{1}{100}$
$L = 100 m$

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A submarine is scaled down to 1100 times for making a model. If the length of the submarine in the scaled down model was 100 cm, what is the original length of the submarine?

The correct option is D 100 mL=OriginalLengthl=ScaledDownLength=100cm=1mlL=11001mL=1100L=100m

A submarine is scaled down to $\frac{1}{100}$ times for making a model. If the length of the submarine in the scaled down model was $100 c m$ , what is the original length of the submarine?

The correct option is D $100 m$
$L = O r i g i n a l L e n g t h$
$l = S c a l e d D o w n L e n g t h = 100 c m = 1 m$

$\frac{l}{L} = \frac{1}{100}$
$\frac{1 m}{L} = \frac{1}{100}$
$L = 100 m$