ЁЯУв Too many exams? DonтАЩt know which one suits you best? Book Your Free Expert ЁЯСЙ call Now!

    тЪб Month End Offer - Flat 52% Off On All Courses! Enroll Now тЪб
    00:00:00 AM Left

    Question

    Volume of material used in constructing a hollow

    cylinder of height 24 cm and thickness 1 cm is 96╧А. What is the sum of the internal and external radii?
    A 7 cm Correct Answer Incorrect Answer
    B 5 cm Correct Answer Incorrect Answer
    C 4 cm Correct Answer Incorrect Answer
    D 3 cm Correct Answer Incorrect Answer

    Solution

    Let external and internal radius of the cylinder be R and r cm respectively. Thickness of cylinder (R - r) = 1 cm. Height of the radius h = 24 cm As we know, Volume of hollow cylinder = ╧А (R2 тАУ r┬▓) h ╧А (R2 тАУ r┬▓) h = 96╧А ┬а ╧А (R + r) (R - r) h = 96╧А ┬а (R+ r) x 1 x 24 = 96 ┬а (R+ r) = 96/24 ┬а (R + r) = 4 cm

    Practice Next
    More Mensuration Questions

    Relevant for Exams:

    ask-question