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    Question

    The average salary of all males and females in an office

    is Rs.16000 and the total number of females in the office is 16. If the average salaries of male and female employee are Rs.20000 and Rs.15000, then find the average salary of office if the salary of Manager is also included which is Rs. 58000.
    A Rs.18000 Correct Answer Incorrect Answer
    B Rs.17000 Correct Answer Incorrect Answer
    C Rs.19000 Correct Answer Incorrect Answer
    D Rs. 21000 Correct Answer Incorrect Answer
    E Rs. 28000 Correct Answer Incorrect Answer

    Solution

    Let number of males be x. => 16000 × (x + 16) = 20000 × x + 15000 × 16 => 16000x + 256000 = 20000x + 240000 => 4000x = 16000 => x = 4 Average, including Manager => (20000 × 4 + 15000 × 16 + 58000)/(4 + 16 + 1) => (80000 + 240000 + 58000)/21 = Rs.18000

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