Arithmetic Aptitudes › Area › Question #5327
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QA verandah with a uniform width of 2.5 m surrounds a 20 m long and 15 m wide hall. Flooring the verandah will cost Rs. 3.50 per square metre.

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  • A Rs.500 ✔ ✖
  • B Rs.600 ✔ ✖
  • C Rs.700 ✔ ✖
  • D Rs.800 ✔ ✖
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Explanation


Length of the hall = 20 m,

Breadth of hall = 15 m,

Area of hall = L x B = 20 x 15 = 300 m2

Length of hall with verandah = 20 + 2.5 + 2.5 = 25 m,

Breadth of hall with verandah = 15 + 2.5 + 2.5 = 20 m,

Area of hall with verandah = 25 x 20 = 500 m2

Area of verandah = area of hall with verandah - area of hall

= 500 - 300 = 200 m2

Cost of flooring the verandah is Rs. 3.50 per square meter.

So, the cost of flooring the entire verandah = 3.50 * 200 = Rs. 700
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