Neco Mathematics Past Questions and Answers

Question 81:

• NECO 2004

Find x if (x - 2)² = 1\(\frac{7}{9}\)

A. \(\frac{2}{3}\) or \(\frac{2}{7}\)
B. 3\(\frac{1}{3}\) or \(\frac{2}{3}\)
C. 3\(\frac{7}{9}\) or \(\frac{2}{7}\)
D. 3\(\frac{1}{3}\) or \(\frac{7}{9}\)
E. \(\frac{3}{7}\) or \(\frac{2}{9}\)

Question 82:

• NECO 2004

Find the surface area of a sphere whose radius is 3.5cm, correct your answer to one decimal place (π = \(\frac{22}{5}\))

A. 12.8cm²
B. 25.7cm²
C. 77.0cm²
D. 154.0cm²
E. 179.7cm²

Question 83:

• NECO 2004

Two angles of a triangle are 450 each and its longest side is 12cm. Find the length of one of the other sides

A. 12cm
B. 9\(\sqrt{2}\)cm
C. 6\(\sqrt{2}\)cm
D. 6cm
E. 3\(\sqrt{2}\)cm

Question 84:

• NECO 2004

The nth term of a sequence is given as 4 x 3(3 - n). Calculate the third term.

A. 12
B. 32
C. 4
D. 3
E. 1

Question 85:

• NECO 2004

If y varies inversely as x², how does x vary with y?

A. X varies inversely as y²
B. X varies inversely as \(\sqrt{y}\)
C. X varies directly as y²
D. X varies directly as \(\sqrt{y}\)
E. X varies directly as y