(300/x)/1.2=225/(x-5)

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(300/x)/1.2=225/(x-5)
(300/x)/1.2=225/(x-5)

(300/x)/1.2=225/(x-5)
300/x.(x-5)=225*1.2 300-1500/x=270 1500/x=30 x=50