(11) Gopal earns an income of \( \$ 5000 \) a month. He spends \( \$ 1250 \) on rent, \( \$ 700 \) on food, \( \$ 450 \) on leisure, \( \$ 100 \) on transportation and saves the rest. (a) What percentage of his expenditure is on food? (b) What percentage of his income goes to his savings?

To find the percentage of Gopal's expenditure on food, we first need to calculate his total expenditure. Gopal spends: - Rent: \( \$ 1250 \) - Food: \( \$ 700 \) - Leisure: \( \$ 450 \) - Transportation: \( \$ 100 \) Total expenditure = \( 1250 + 700 + 450 + 100 = \$ 2500 \). Now, to find the percentage spent on food: \[ \text{Percentage on food} = \left( \frac{\text{Food expenditure}}{\text{Total expenditure}} \right) \times 100 = \left( \frac{700}{2500} \right) \times 100 = 28\%. \] For Gopal's savings, we first determine his total savings: \[ \text{Savings} = \text{Income} - \text{Total expenditure} = 5000 - 2500 = \$ 2500. \] Now, to find the percentage of his income that goes to savings: \[ \text{Percentage of income in savings} = \left( \frac{\text{Savings}}{\text{Income}} \right) \times 100 = \left( \frac{2500}{5000} \right) \times 100 = 50\%. \] So, the answers are: (a) 28% of his expenditure is on food. (b) 50% of his income goes to his savings.