k:5=1400-900 d-30=1000-200
k:5=1400-900,
k/5=500,
k=500*5,
k=2500;
d-30=1000-200,
d-30=800,
d=800+30,
d=830
К = 5*(1400-900)=2500
D = 30+(1000-200)=830
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Answers & Comments
k:5=1400-900,
k/5=500,
k=500*5,
k=2500;
d-30=1000-200,
d-30=800,
d=800+30,
d=830
Verified answer
К = 5*(1400-900)=2500
D = 30+(1000-200)=830