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Three pupils Furaha, Gitahi and Komen contributed a total of sh 400 for a party. Furaha contributed sh 30 more than Gitahi while, Komen contributed three times as much as Furaha. If Komen contributed sh x, which one of the equation below can be used to find Komen’s contribution?
A. 5x-90=1200
B.# 1 2/3#x-30=400
C. 5x+90=1200
D. 7x-30=400