F.1 maths question about PROFIT
2017/06/24 21:39
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F.1 maths question about PROFIT
發問:
1.When a box of crayons is sold for $58,a profit of 16% is made. If it is sold for $42,find the loss percentage. 2.A merchant bought a box of 80 apples with $100.If he sold each aples at $2,what was his profit per cent?
最佳解答:
1.When a box of crayons is sold for $58,a profit of 16% is made. If it is sold for $42,find the loss percentage. Original price = $58 / (1+16%) = $58 / 116% = $58 / 1.16 = $50 Lose percentage at $42 = ($50-$42)/$50 * 100% = 8/50 * 100% = 16% So the lost percentage is 16% =========================================== 2.A merchant bought a box of 80 apples with $100.If he sold each aples at $2,what was his profit per cent? Total income = 80 * $2 = $160 Profit percentage = ($160 - $100)/$100 * 100% = 60/100 * 100% = 60% So the profit percentage is 60%
其他解答:
1.Let x be the original price. x ( 1 + 0.16 ) = 58 x = 50 so, the original price is $50. The loss percentage : [(42-50) / 50] x 100% = [(-8) / 50] x 100% = -0.16 x 100% = -16% so the loss percentage is 16%. 2.First, find out the cost of each apple at the “buying” price. 100/80 = 1.25 so, each apple was bought at a price of $1.25 The profit percentage : [(2-1.25) / 1.25] x 100% = (0.75 / 1.25) x 100% = 0.6 x 100% = 60% so, the profit percentage is 60%.|||||1) ($58/1.16 - $42)/$58/1.16 * 100% = 16% 2) ($2 - $100/80)/$100/80 *100% = 60%
F.1 maths question about PROFIT
發問:
1.When a box of crayons is sold for $58,a profit of 16% is made. If it is sold for $42,find the loss percentage. 2.A merchant bought a box of 80 apples with $100.If he sold each aples at $2,what was his profit per cent?
最佳解答:
1.When a box of crayons is sold for $58,a profit of 16% is made. If it is sold for $42,find the loss percentage. Original price = $58 / (1+16%) = $58 / 116% = $58 / 1.16 = $50 Lose percentage at $42 = ($50-$42)/$50 * 100% = 8/50 * 100% = 16% So the lost percentage is 16% =========================================== 2.A merchant bought a box of 80 apples with $100.If he sold each aples at $2,what was his profit per cent? Total income = 80 * $2 = $160 Profit percentage = ($160 - $100)/$100 * 100% = 60/100 * 100% = 60% So the profit percentage is 60%
其他解答:
1.Let x be the original price. x ( 1 + 0.16 ) = 58 x = 50 so, the original price is $50. The loss percentage : [(42-50) / 50] x 100% = [(-8) / 50] x 100% = -0.16 x 100% = -16% so the loss percentage is 16%. 2.First, find out the cost of each apple at the “buying” price. 100/80 = 1.25 so, each apple was bought at a price of $1.25 The profit percentage : [(2-1.25) / 1.25] x 100% = (0.75 / 1.25) x 100% = 0.6 x 100% = 60% so, the profit percentage is 60%.|||||1) ($58/1.16 - $42)/$58/1.16 * 100% = 16% 2) ($2 - $100/80)/$100/80 *100% = 60%
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