The total expenditure of P and Q = Rs. 10500 Statement I, The ratio of expenditure of P and Q = 4 ∶ 3 ∴ Expenditure of P = (
4
7
) × 10500 = Rs. 6000 And Expenditure of Q = (
3
7
) × 10500 = Rs. 4500 Statement I alone is not sufficient to answer the question Statement II, Saving of Q = Rs. 1500 Statement II alone is not sufficient to answer the question Statement I and II together, Income of Q = 4500 + 1500 = Rs. 6000 Since the ratio of income of P and Q is 6 ∶ 5 ∴ Income of P = (
6
5
) × 6000 = Rs. 7200 ∴ Statement I and statement II together are required to answer the question.