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     EduGorilla 
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    A well has to be dug out that is to be 22.5 m deep and of diameter 7 m. Find the cost of plastering the inner curved surface at Rs. 3 per sq. metre .

    Options :-

    1. Rs. 1465
    2. Rs. 1485
    3. Rs. 1475
    4. Rs. 1495
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