Aptitude   Area  Questions And Answers

21. An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:

2% 2.02% 4% 4.04%

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22. The breadth of a rectangular field is 60% of its length. If the perimeter of the field is 800 m, find out the area of the field.

37500 m2 30500 m2 32500 m2 40000 m2

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23. A rectangular field is to be fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 680 sq. feet, how many feet of fencing will be required?

34 40 68 88

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24. If each side of a square is increased by 25%, find the percentage change in its area?

65.25 56.25 65 56

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25. Find the area of a square of side 35 m.

1220m2 1225m2 1250m2 1200m2

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26. Find the area of a rectangle of length 24 mm and breadth 8 mm.?

180m2 185m2 190m2 192m2

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27. The diameter of a circle is 8 centimeters. What is the area?

51.12cm 52.42cm 54.40cm 50.24cm

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28. Length of a side of a square field is 275 m. What will be cost of levelling the field at a rate of 10 cent per square metre?

$ 7564.2 $ 7568.50 $ 7542.62 $ 7562.50

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29. Find the area of a rectangle whose length is 15 cm and breadth is 50 mm.

75cm2 85cm2 70cm2 80cm2

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30. If D = 20 cm, calculate the area of circle?.

314cm2 316cm2 318cm2 312cm2

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