Purchase

The mother bought five boxes of milk and 7 kg of potatoes and paid a total of CZK 147. The aunt bought seven boxes of milk and 3 kg of potatoes and paid 131 CZK. What is the price of one carton of milk and 1 kg of potatoes? How would CZK together have been saved if bought at the supermarket, where the milk is the same price, but the potatoes are 20% cheaper?

Final Answer:

x =  14 Kc
y =  11 Kc
z =  22 Kc

Step-by-step explanation:

p=20%=10020=51=0.2  y2=p y=0.2 11=511=2.2 Kc/kg z=(3+7) y2=(3+7) 2.2=22 Kc



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