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26-05-2021
Mathematics

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The price of a watch was increased by 20% to £144. What was the price before the increase

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yaguba9 yaguba9

26-05-2021

Answer:

120 pounds

Step-by-step explanation:

Since the new cost is 144 pounds and this is 20% more, this is 120% of the original price. Remember 100+20 = 120. To find the original price set up a proportion with these values:

Solve for the original price by cross multiplying numerator with denominator.

x(120) = 144(100)

120x = 14400

x= 120 pounds

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