Multiple choice

What would be the cost of laying a carpet on a floor which has its length and breadth in the ratio of 23: 12 and its perimeter 210 feet, if the cost per square feet of laying carpet is Rs. 4.50?

  1. Rs. 12178

  2. Rs. 11178

  3. Rs. 10178

  4. Rs. 14728

  5. Rs. 13178

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The length and breadth are 23x and 12x respectively. Perimeter = 2(23x + 12x) = 70x = 210, so x = 3. Area = 69 × 36 = 2484 sq ft. Cost = 2484 × 4.50 = Rs. 11178.