What is the cost of ploughing a square field of dimensions 45 m × 45 m at a rate of Rs. 24 per m2?

What is the cost of ploughing a square field of dimensions 45 m × 45 m at a rate of Rs. 24 per m²?
1). Rs. 34800
2). Rs. 36000
3). Rs. 42400
4). Rs. 48600

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