(i) Profit = (Income $ - $ Expenditure) (ii) Profit per cent = (Profit/Expenditure $ \times $ 100) (iii) Loss = (Expenditure $ - $ Income) (iv) Loss per cent = (Loss / Expenditure $ \times $ 100) If income of the businessman increased by 40% from September to October and his expenditure decreased by 30% from September to October, what was his profit per cent in October?
A) $ 56\frac{9}{13} $ %
B) $ 51\frac{5}{13} $ %
C) $ 45\frac{9}{13} $ %
D) $ 53\frac{11}{13} $ %
E) $ 48\frac{7}{13} $ %
Correct Answer: D
$ \therefore $ Profit = Income $ - $ expenditure $ =560-364=196 $
$ \therefore $ Profit % $ =\frac{196}{364}\times 100=53\frac{11}{13} $ %