A person who spends $66\frac{2}{3}$% of his income is able to save Rs. 1,200 per month. His monthly expense (in Rs.) is-

Explanation

Monthly saving of a person = $100\% - 66\frac{2}{3}\%$ $$= \left(100 - \frac{200}{3}\right)\%$$ $$= \frac{100}{3}\%$$ ∵ Monthly saving of person = $\frac{100}{3}\%$ According to questions, $\frac{100}{3}\% = Rs. 1200$ ∴ Monthly Expense of person $\frac{200}{3}\%$ $$= Rs. 1200 \times 2 = 2400 Rs.$$