If the length and breadth of a room are $15 m$ and $10 m$ respectively, then
Length : Area $=$ ________ $[3 : 10 / 1 : 10]$

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Solution

Given that,
Length of the room $= 15 m$
Breadth of the room $= 10 m$
Area of the room $= 15 \times 10 = 150 m^{2}$
Now, ratio of length to area of the room $= 15 : 150$
Lowest form of $15 : 150 = \frac{15}{150} = \frac{1}{10} = 1 : 10$
Hence, Length : Area $=$ $1 : 10$

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