Sisters

Sisters Janka and Danka are saved together 220 CZK. On a trip to Janka wants to take a fifth of her savings and Danka quarter. Then they will have 50 CZK on the trip. How much money saved Janka and Danka?

Result

J =  100
D =  120

Solution:


D+J = 220
J/5+D/4 = 50

D+J = 220
5D+4J = 1000

D = 120
J = 100

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