It costs 6.8 yuan to buy 1000 kg of apples and 3000 kg of grapes. It is known that 1000 kg of apples is twice as much as 2000 kg of grapes. It costs 0.3 yuan. How much is 500 g of apples
6 8 can buy 1 ton Apple + 3 tons grape?!
Set the price of 1000 kg apple as X and grape as y
be
x+3*y=6.8
x=2*y+0.3
The solution is x = 2.9, y = 1.3
So 500 kg apple is 1.45 yuan
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