After paying a 10% tax on all income over $3,000, a person had a

After paying a 10% tax on all income over $3,000, a person had a net income of $12,000.
What was the income before taxes?

A)$13,300
B) $13,000
C) $12,900
D) $10,000
E) $9,000













let the amt be x.... so 10% of(x-3000)is the tax.....
so x- (x-3000)*0.1=12000..
x=13000