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Use of Proportions for Situations

Question 101 ...

Question

Question 101 (ii)

Find the scale.
Actual size 45 feet, Drawing size 5 inches

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Solution

By using, scale $= \frac{S i z e d r a w n}{A c t u a l s i z e} = \frac{5 i n c h e s}{45 f e e t} = \frac{1 i n c h}{9 f e e t} = 1 i n c h : 9 f e e t$
Hence, scale = 1 inch : 9 feet

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Use of Proportions for Situations

Standard VII Mathematics

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