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A hall 20 m long and 15 m broad is surrounded by a verandah of uniform width of 2.5 m. the cost of flooring the verandah at the rate of 3.50 per sq. meter is?

Rs. 500
Rs. 600
Rs. 700
Rs. 800

Correct Answer: Rs. 700

Explanation:

Area of verandah = [(25 x 20) -(20 x 15)] m²
= 200 m²
∴ Cost of flooring = Rs. (200 x 3.50)
= Rs. 700

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