Given: The income of P and Q ratio = 8 ∶ 9 And expenditure ratio = 7 ∶ 6 P saves = Rs. 500 Q saves = Rs. 1500 Formula used: Income = Expenditure + saving Calculations: Let incomes 8x and 9x According to the question, ⇒(8x–500)/(9x–1500)=7/6 ⇒48x–3000=63x–10500 ⇒15x=7500 ⇒x=500 P’s income =8×500 = Rs. 4000 Q’s income =9×500 = Rs. 4500 ∴ P and Q’s income is Rs. 4000 and Rs. 4500 respectively.