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    Question

    A rectangular lawn 35m x 40m has two roads each 4metres

    wide, running in the middle of it, one parallel to the length and the other parallel to the breadth. Find the cost of watering the lawn at the rate of Rs. 5 per square metre.┬а ┬а
    A Rs.7,500 Correct Answer Incorrect Answer
    B Rs.5580 Correct Answer Incorrect Answer
    C Rs.6,740 Correct Answer Incorrect Answer
    D Rs. 5,890 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Area of the first path = 35 x 4 = 140 m┬▓, Area of the second path = 40 x 4 = 160 m┬▓ and Area of centre = 4 x 4 = 16 m┬▓ Total area of both paths = 140 + 160 тАУ 16 = 284 m┬▓ ┬аArea of the lawn with path = 35 x 40 = 1400 m┬▓ ┬аArea of the lawn without path = 1400 - 284 = 1116 m┬▓ тИ┤ Cost of watering = 1116 ├Ч 5 = Rs. 5580

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