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  1. A room is 15m long, 4m broad and 3m height. Find the cost of white washing its four walls at 50p per m2 ?
    2. A.
    Rs.60
    B.
    Rs.57
    C.
    Rs.55
    D.
    Rs.52

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    Answer : Option B

    Explanation :

    2 *3(15 + 4) = 114

    114 * 1/2 = Rs.57

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