📢 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 station master decides that the length of the

      rectangular digital board be increased by 5% and the width be reduced to 7%. Find out the total change in the area.
      A 1.24% reduction Correct Answer Incorrect Answer
      B 2.35% increase Correct Answer Incorrect Answer
      C 2.35% reduction Correct Answer Incorrect Answer
      D 1.24% increase Correct Answer Incorrect Answer

      Solution

      Let length and breadth of the rectangle be x and y respectively. As we know, Area of the rectangle = xy New length of the rectangle = x × 105/100 = 1.05x New breadth of the rectangle = y × 93/100 = 0.93 New area of the rectangle = 1.05x × 0.93y = 0.9765xy Area decreased by (in %) = [(xy-0.9765xy) /xy] x 100   = 2.35%

      Practice Next
      More Percentage Questions
      ask-question