Question

    Anita spends 75% of her monthly salary and receives a

    commission of 8% on her salary every month. If her annual saving is Rs. 129600, find the commission she gets every month. [Monthly income = salary + commission]
    A Rs. 2800 Correct Answer Incorrect Answer
    B Rs. 3000 Correct Answer Incorrect Answer
    C Rs. 3200 Correct Answer Incorrect Answer
    D Rs. 3400 Correct Answer Incorrect Answer

    Solution

    Let salary = Rs. x Commission = 0.08x Monthly income = 1.08x Annual income = 12 × 1.08x = 12.96x Savings = 25% of 12.96x = 0.25 × 12.96x = 3.24x 3.24x = 129600 ⇒ x = 129600 / 3.24 = Rs. 40000 Commission = 0.08 × 40000 = Rs. 3200

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