GATE 2025 XH5 (Psychology) – Question 26
Consider a square field ABCD. The diagonal AC is 50 meter. The cost of laying grass in the field is Rs. 5 per square-meter. The total cost for laying grass in the field ABCD is Rs. ________ (rounded off to two decimal places).
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Show answer and explanation
Correct answer: 6218.75 to 6281.25
Explanation
The area of a square with diagonal $d$ is $\frac{d^2}{2} = \frac{2500}{2} = 1250$ square metres. At Rs. 5 per square metre the cost is $5 \times 1250 = 6250.00$.