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SSC Sample Paper Mock Test-15 SSC CGL Tear-II Paper-1

  • question_answer
    A garden is in the form of a rectangle with semi-circular ends on the either side as shown in the diagram below. The length and breadth of the rectangle are 20 m and 14m respectively. The cost of levelling the plot at Rs. 25 per \[{{\text{m}}^{2}}\] is

    A) Rs. 10850

    B)  Rs. 5425

    C)  Rs. 8510

    D)  Rs. 4255

    Correct Answer: A

    Solution :

    Area to be levelled = Area of rectangle +2 (Area of semi-circular ends) \[=20\times 14+2\times \frac{1}{2}\times \frac{22}{7}\times 7\times 7\] \[=280+154=434\,\,{{\text{m}}^{2}}\] \[\therefore \] Cost of levelling = Rs.\[(434\times 25)\]= Rs. 10850


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