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प्रश्न
A model of an aeroplane is made to a scale of 1 : 400. Calculate : the length, in m, of the aeroplane, if length of its model is 16 cm.
योग
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उत्तर
Model of an aeroplane to the actual = 1 : 400
∴ Scale factor = `400/1 = k`
Given length of model = 16 cm
∴ Actual length of aeroplane
= `(16 xx 400)/1`
= 6400 cm
= `6400/100 m`
= 64 m
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