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    Question

    ‘P’, ‘Q’ and ‘R’ rented a power generator for

    their stalls. They used it for 4 hours, 7 hours, and 5 hours respectively. The total rent they paid was Rs. 800. How much did ‘R’ pay?
    A Rs.157 Correct Answer Incorrect Answer
    B Rs.126 Correct Answer Incorrect Answer
    C Rs.250 Correct Answer Incorrect Answer
    D Rs.105 Correct Answer Incorrect Answer

    Solution

    ATQ,
    Let the dealer charged Rs. ‘x’ per hour.

    Then the amount paid by ‘P’, ‘Q’ and ‘R’ is Rs. 4x, Rs. 7x, and Rs. 5x respectively.

    So, 4x + 7x + 5x = 800

    ⇒ 16x = 800

    ⇒ x = 50

    Rent paid by ‘R’ = 5x = 5 × 50 = Rs. 250

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