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The ratio between the monthly salary of P and Q is 20 : 21. The ratio between the expenditure of P and Q is 5 : 7. The difference between the salary of Q and P is Rs.2000 and the savings of Q is Rs.14000. Find the ratio between the savings of P and Q.1. 2 : 72. 12 : 73. 5 : 24. 7 : 125. 10 : 7 |
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Answer» Correct Answer - Option 5 : 10 : 7 Given: Let salary of P and Q be Rs.20a and Rs.21a respectively. Calculation: ⇒ 21a - 20a = 2000 ⇒ a = 2000 The monthly salary of P and Q is Rs.40000 and Rs.42000 respectively. ⇒ Expenditure of Q = 42000 - 14000 = Rs.28000 Then, ⇒ (Expenditure of P) : 28000 = 5 : 7 ⇒ Expenditure of P = 28000 × 5/7 = Rs.20000 ⇒ Savings of P = 40000 - 20000 = Rs.20000 Required ratio = 20000 : 14000 = 10 : 7 ∴ the correct answer is 10 : 7 |
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