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Mathematics 2005 NECO Past Questions

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16
Solve for x in the quadratic equation. 2x2 + 12x + 10 = 0
  • A. x = -5, -1
  • B. x = -5,1
  • C. x = -3, -2
  • D. x = 3, 2
  • E. x = 6, 5
View Answer & Discuss (1) NECO 2005
17
A surveyor measured the length of a obtained 42.55 metres. If his measurement was more than the actual length and the percentage error of his measurement was 8%, calculate the actual length of the land
  • A. 39.40 metres
  • B. 46.20 metres
  • C. 46.25 metres
  • D. 46.50 metres
  • E. 48.25 metres
View Answer & Discuss NECO 2005
18

If x + \(\frac{1}{x}\) = 8, find x\(^2\) + \(\frac{1}{x^2}\)

  • A. 64
  • B. 62
  • C. 32
  • D. 16
  • E. 4
View Answer & Discuss (6) NECO 2005
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19
Evaluate 0.0025 × 2.5 × 102 to 2 significant figures.
  • A. 0.625 × 10-3
  • B. 0.63 × 10-2
  • C. 6.25 × 10-3
  • D. 6.3 × 10-2
  • E. 6.3 × 10-1
View Answer & Discuss NECO 2005
20

What is the Value of 11101\(_{two}\)+ 10011\(_{two}\) - 10001\(_{two}\)?

  • A. 10001\(_{two}\)
  • B. 10011\(_{two}\)
  • C. 10111\(_{two}\)
  • D. 11111\(_{two}\)
  • E. 111111\(_{two}\)
View Answer & Discuss (4) NECO 2005
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