📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

  • google app store apple app store
  • ✖

      Question

      A cuboidal box with dimensions 12.5 cm (length), 7.5 cm

      (breadth), and 10 cm (height) is open from the top. The box is to be painted from the outside. If the cost of painting is Rs. 2 per cm², calculate the total cost of painting the box.
      A Rs. 913.50 Correct Answer Incorrect Answer
      B Rs. 924.50 Correct Answer Incorrect Answer
      C Rs. 954.50 Correct Answer Incorrect Answer
      D Rs. 987.50 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Area to be painted = lateral surface area of cuboid + base area of cuboid = 2 X (length + breadth) X height + length X breadth = 2 X (12.5 + 7.5) X 10 + 12.5 X 7.5 = 400 + 93.75 = 493.75 cm2 Therefore, cost of painting = 493.75 X 2 = Rs. 987.50

      Practice Next
      ask-question