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lilavasa [31]
2 years ago
6

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

Mathematics
1 answer:
MAXImum [283]2 years ago
3 0

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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Answer:

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Step by Step:

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Substitute the  value of h, k, x, y in equation (i) and find the value of a.

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