Multiple Choice Questions on A cistern 6m long and 4 m wide contains water up to a depth of 1 m 25 cm The total area of the wet s........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A cistern 6m long and 4 m wide contains water up to a depth of 1 m 25 cm The total area of the wet s...........

Quantitative Aptitude ( CCS) Mensuration 2D
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    A cistern 6m long and 4 m wide contains water up to a depth of 1 m 25 cm. The total area of the wet surface is: 

    49m2 
    Correct Answer
    53m2 
    Incorrect Answer
    38m2
    Incorrect Answer

    40m2

    Incorrect Answer
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    Explanation:

    Area=[2(lb+bh+hl)-lb] =2(bh+hl)+lb
    =[2(4*1.25 + 6*1.25) + (6*4)] =25+24
    =49m2

    By: Amit Kumar
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