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

    Question

    The volume of a cube is 64 cm3. If the cost

    of painting is Rs. 20/cm2 , then find the cost of painting the four faces of the cube.
    A Rs. 1280 Correct Answer Incorrect Answer
    B Rs. 1200 Correct Answer Incorrect Answer
    C Rs. 1230 Correct Answer Incorrect Answer
    D Rs. 1270 Correct Answer Incorrect Answer

    Solution

    Let the length of edge of the cube be ‘a’ cm. ATQ; a3 = 64 Or, a = 4 Area of four faces of the cube = 4 × 42 = 64 cm2 Required cost of painting = 64 × 20 = Rs. 1280

    Practice Next
    More Mensuration Questions
    ask-question