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

    Question

    The area of four walls of a room is 120 cm2.

    If the length and breadth of the room were equal and the height of the room is 5 cm, then what is the area of the floor?┬а
    A 64 sq.cm Correct Answer Incorrect Answer
    B 49 sq.cm Correct Answer Incorrect Answer
    C 36 sq.cm Correct Answer Incorrect Answer
    D 81 sq.cm Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    According to question, ┬а => l = b ┬а Area of the wall = 2(l + b)h ┬а => 120 = 2(l + l) ├Ч 5┬а ┬а => 120 = 4 ├Ч l ├Ч 5 ┬а => l = 120/20 = 6 cm ┬а Area of the floor = l ├Ч b = 6 ├Ч 6 = 36 cm2┬а

    Practice Next
    More Mensuration Questions

    Relevant for Exams:

    ask-question