After paying 10% tax on all income over Tk 3000, Rahim had a net income of Tk 12,000. Rahim's income before tax (in Tk) was ----
A
12,900
B
12,300
C
13,300
D
10,300
Correct Answer: 12,900
12, 000 - 3, 000 = 9, 000 10% tax, if after tax income Tk.90 before tax income Tk.100 If after tax income Tk. 9000 before tax income Tk. = ( 100× 9000)/90 = 10, 000 Before tax income = 10, 000 + 3, 000 = Tk.13, 000