TK 1620000
At 12% interest rate,
Tk. 100 in 1 year earn = Tk. 12
Tk. 50,00,000 in 1 year earn = TK $\frac{12×5000000}{100}$
= Tk. 6,00,000
At, 15% interest rate,
Tk. 100 in 1 year earn =Tk. 15
Tk. 80,00,000 in 1 year earn = TK $\frac{15×8000000}{100}$
= Tk. 12,00,000
Total income = 6,00,000 + l2,00,000 = Tk. 18,00,000
Income tax paid = Tk. 18,00,000 x 10% = Tk. 1,80,000.
Income will be = 18,00,000 – 1,80,000
= 16,20,000
80 %
Let, the production cost ‘I‘k. x
Producer selling price = x + x x 25%
= 1.251: = Whole seller’s cost
Whole seller’s selling price = 1.251: + 1.25x x 20%
= 1.5:: = Retailer’s cost
Retailer’s selling price = 1.5x + 1.5x x 20% = 1.80::
According to the question,
1.80x = 900
x = $\frac{900×100}{180}$ = 500
Production cost = Tk. 500
% increase = $\frac{900-500}{500}$ x100% = 80%
