At a shop, a mobile phone was sold at 40% of a television. Both items were sold at a 20% discount. Janet paid $2016 for both items after the discount. What was the usual price of the television?
Q. At a shop, a mobile phone was sold at 40% of a television. Both items were sold at a 20% discount. Janet paid $2016 for both items after the discount. What was the usual price of the television?
Define Variables: First, let's define the variables:Let T be the usual price of the television.The mobile phone was sold at 40% of the price of the television, so the price of the mobile phone is 0.40T.Both items were sold at a 20% discount.Janet paid $2016 for both items after the discount.We need to find the value of T.
Calculate Prices After Discount: Calculate the price of both items after the 20% discount.The discount on the television is 20% of T, which is 0.20T.The discounted price of the television is T−0.20T=0.80T.The discount on the mobile phone is 20% of 0.40T, which is 0.08T.The discounted price of the mobile phone is 0.40T−0.08T=0.32T.
Combine Discounted Prices: Combine the discounted prices of both items to set up the equation based on the total amount paid by Janet.Total cost after discount = Discounted price of television + Discounted price of mobile phone$2016=0.80T+0.32T
Simplify Equation: Simplify the equation to solve for T. $2016=0.80T+0.32T $2016=1.12T
Divide to Find Price: Divide both sides of the equation by 1.12 to find the usual price of the television.T=1.12$2016T=$1800
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