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Uses of Ratios and Proportions

Increase 450 ...

Question

Increase 450 in the ratio 5:9 and then decrease the obtained number in the ratio 10:3. Find the final number.

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Solution

Increasing 450 in the ratio 5:9, we get = 450 * (9/5) = 810

Decreasing the obtained number (=810) in the ratio 10:3 = 810 * (3/10) = 243

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