Arithmetic Aptitudes › Area › Question #5321
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QA rectangular grass field is 85 metres long and 65 metres wide. A 5-meter-wide path surrounds it. Determine the path's area and the cost of construction at Rs. 5 per square metre.

ID: #5321 Area 409 views
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#5321Q ID
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AreaTopic
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  • A 4000 ✔ ✖
  • B 6000 ✔ ✖
  • C 8000 ✔ ✖
  • D 7000 ✔ ✖
Correct Answer: Option C

Explanation


Area of the entire grass field including the path = Length (85 + 5 +5) * Breadth (65 + 5+5)
                                                                            = 95 * 75 = 7125 sq. m.

Area of the grass field excluding the path = 85 * 65 = 5525 sq. m.

So, area of the path = 7125 - 5525 = 1600 sq. m.

The cost of constructing is Rs. 5 per square meter.

So, the cost of constructing the entire path = 1600 * 5 = Rs. 8000
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