# Three friends

The three friends spent 600 KC in a teahouse. Thomas paid twice as much as Paul. Paul a half less than Zdeněk. How many each paid?

Correct result:

T =  240 Kc
P =  120 Kc
Z =  240 Kc

#### Solution:

T+P+Z = 600
T = 2P
P = Z/2

P+T+Z = 600
2P-T = 0
2P-Z = 0

P = 120
T = 240
Z = 240

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