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6th Class Mathematics Mensuration Question Bank Mensuration

  • question_answer
    On a wall of dimensions 10.5 m long and 8.5 m wide, a square shaped wall poster is stuck at the centre whose side measure is 2.5 m. If the remaining part of the wall is to be painted with pink colour costing Rs. 12 per sq. m, how much does it cost?

    A) Rs. 89.25            

    B) Rs. 996  

    C) Rs. 830                

    D) Rs. 12

    Correct Answer: B

    Solution :

    Area of the poster \[\text{= 2}\text{.5 }\!\!\times\!\!\text{ 2}\text{.5 sq}\text{. m}\] =6.25sq.m Area of the wall \[=\text{ }10.5\times 8.5\text{ }sq.m\] = 89.25sq.m Area of the wall to be painted =(89.25-6.25) sq.m =83.00 sq.m Cost of painting \[\text{= 83 }\!\!\times\!\!\text{ }\]Rs. 12 = Rs. 996


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