📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!
  • google app store apple app store
    • ✖

      Question

      The breadth of a rectangular hall is 8/25 of its length.

      If the area of the floor is 200 sq. m., then the difference between the length and breadth of the hall is: 
      A 52 m Correct Answer Incorrect Answer
      B 24 m Correct Answer Incorrect Answer
      C 4 m Correct Answer Incorrect Answer
      D 17 m Correct Answer Incorrect Answer

      Solution

      Using formula  Area = lb, Let the length of rectangular hall = x metre Therefore, Breadth = (8x/25) metre Area of rectangle = Length x Breadth ⇒ (8x/25) × x ⇒ 8x2/25 m2 According to question, ⇒ 8x2/25 = 200 Therefore, x2 = (200 x 25)/8 or, x = √{(200 x 25)/8} = 25 m Therefore, Length = 25 m and Breadth = 8 m Therefore, required difference = 25 – 8 = 17 m

      Practice Next
      More Mensuration Questions
      ask-question