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NCERT Solutions Class 8 Mathematics Solutions for Exercise 13.1 in Chapter 13 - Direct and Inverse Proportions
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Q6) In a model of a ship, the mast is 9 cm high, while the mast of the actual ship is 12 m high. If the length of the ship is 28 m, how long is the model ship?
Answer:
Solution:
Let the length of the model ship be x.
Here the length of the mast and actual length of the ship are in direct proportion.
\frac{12}{9}=\frac{28}{x}\Rightarrow\ x\times12=28\times9
\Rightarrow x=\frac{28\times9\ }{12}=21 cm.
Hence the length of the model ship is 21 cm.
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