The price of a laptop is decreased by 10% to $360. What is its original price?
A
400
explanation
Let ๐ฅ be the original price.
If the price of a laptop is decreased by 10% to $360, then:
90% ๐๐ ๐ฅ = 360 โ 0.90๐ฅ = 360 โ ๐ฅ = 360 รท 0.90 = 400
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