A square park has side 7m. The cost of laying gass in the park at ₹ 10 per $m^{2}$ is ____.

₹. 480

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₹. 490

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₹. 500

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₹. 550

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Solution

The correct option is B
₹. 490

Total cost of laying grass in the field = Area of the square park $\times$ Cost of laying grass per $m^{2}$

Area of the square park $= 7 \times 7 = 49 m^{2}$

Total cost of laying grass in the field $= 49 \times 10 = ₹ 490$

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