Question

how to solve this problem

Answer 1

16.2=16x/100+1800x-18x/100
By taking the COM
16.2=16x+1800-18x/100
16.2=1800-2x/100
2x= 1800-16.2/100
2x=1783.8/100
2x= 17830
x=17830/2
x=8915

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