Mathematics Past Questions

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3106

If sin θ = \(\frac{\sqrt{3}}{2}\) and 0 < θ < 180°, what is cos θ ?

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

View Answer & Discuss (1) NECO 2002

3107

Three sets of rice x, y and z are sold for N15.00, N35.00 and N60.00 respectively per kg. It they are mixed in the ratio of 1: 3 : 2, what is the cast per kg of the mixture?

A. N45.00
B. N42.50
C. N40.00
D. N35.50
E. N25.80

View Answer & Discuss (2) NECO 2002

3108

When a shirt is sold for N12000.00, a loss of 20% is recorded. How much should it be sold for to gain 20%?

A. N4800.00
B. N400
C. N1800.00
D. N1500.00
E. N960.00

View Answer & Discuss (4) NECO 2002

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3109

The ratio of the circumference to the diameter of a circle is approximately equal to

A. 2.5
B. 3.14
C. 4.83
D. 6.52
E. 7

View Answer & Discuss (3) NECO 2003

3110

What must be added to 3x² - 5x to make it a perfect square?

A. \(\frac{36}{25}\)
B. \(\frac{25}{36}\)
C. -\(\frac{25}{36}\)
D. -\(\frac{5}{6}\)
E. -\(\frac{6}{5}\)

View Answer & Discuss (3) NECO 2002

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