Multiple choice

What would be the cost (in Rs.) of building a fence around a square plot with area 506.25 sq.ft. at the rate of Rs. 44 per foot ?

  1. 3460

  2. 3640

  3. 3690

  4. 3960

  5. 4000
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

First find the side length of the square by taking the square root of the area: sqrt(506.25) = 22.5 ft. The perimeter of a square is 4 times the side length: 4 × 22.5 = 90 ft. The total cost is perimeter × rate: 90 × 44 = Rs. 3960. This matches option D.

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