Multiple Choice Questions on The ratio between the monthly salary of P and Q is 20 21 The ratio between the expenditure of P and ........... for SBI(PO) Exam Preparation

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Multiple Choice Questions

The ratio between the monthly salary of P and Q is 20 21 The ratio between the expenditure of P and ...........

Quantitative Aptitude (SBI-PO) Ratio, Proportion
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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.

    This questions was previously asked in
    SBI PO Prelims
    View All SBIPO Previous Year Papers

    2 : 7

    Incorrect Answer

    12 : 7 

    Incorrect Answer

    5 : 2

    Incorrect Answer

    7 : 12 

    Incorrect Answer

    10 : 7

    Correct Answer
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    Explanation:

    - Let P's salary be 20x and Q's salary be 21x. The difference of salaries (21x - 20x) is Rs. 2000, so x = Rs. 2000.

    - Hence, P's salary is Rs. 40000 and Q's salary is Rs. 42000.

    - Let P’s expenditure be 5y and Q’s expenditure be 7y.

    - Q's savings is Rs. 14000. Therefore, Q’s expenditure is Rs. 28000 (42000 - 14000) and 7y = Rs. 28000, so y = Rs. 4000.

    - P’s expenditure is 5y = Rs. 20000, thus P’s savings = Rs. 20000 (40000 - 20000).

    - Ratio of savings of P and Q is 20000:14000 = 10:7.

    Therefore, the correct answer is Option 5: 10 : 7.

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    By: Parvesh Mehta
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