k:5=1400-900 d-30=1000-200

Question

k:5=1400-900 d-30=1000-200

Answer 1

k:5=1400-900,

k/5=500,

k=500*5,

k=2500;

 

d-30=1000-200,

d-30=800,

d=800+30,

d=830

Answer 2

К = 5*(1400-900)=2500

D =  30+(1000-200)=830