Neco Mathematics 2005 Past Questions and Answers

Question 31:

• NECO 2005

If x + \(\frac{1}{x}\) = 8, find x² + \(\frac{1}{x^2}\)

A. 64
B. 62
C. 32
D. 16
E. 4

Question 32:

• NECO 2005

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

Question 33:

• NECO 2005

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\(_{two}\)

Question 34:

• NECO 2005

A ship sails 6km from a port on a bearing 070° and then 8km on a bearing of 040°. Find the distance from the port.

A. 7.21km
B. 13.53km
C. 16.86km
D. 44.57km
E. 67.17km

Question 35:

• NECO 2005

Calculate without using tables Tan 45° + Cos 60°

A. \(\sqrt{\frac{3}{2}}\) - 1
B. \(\frac{1}{2}\)
C. 1\(\frac{1}{2}\)
D. \(\sqrt{\frac{3}{2}}\) + 1
E. 2