Traditional Culture Encyclopedia - Tourist attractions - On Sunday, Xiao Ming went on a trip with seven to eight classmates. On the way, he spent 20 yuan to buy drinks. The store only had Coke and milk tea. It was known that a cup of Coke cost 2 yuan.
On Sunday, Xiao Ming went on a trip with seven to eight classmates. On the way, he spent 20 yuan to buy drinks. The store only had Coke and milk tea. It was known that a cup of Coke cost 2 yuan.
Four cups of Coke and four cups of milk tea
Suppose the number of people drinking Coke is X and the number of people drinking milk tea is Y~
2X+3Y=20
X+Y=8
Y=8-X
2X+3(8-X)=20
2X+24-3X=20< /p>
X=24-20=4
Y=8-4=4
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