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Mathematics Past Questions and Answers

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Jamb 1982 Mathematics Questions

Question 26:

A world congress of mathematicians were held in Nice in 1970 with 800 people participating. There were 300 from Europe, 200 from America, 150 from Asia, 45 from Africa and 105 from Australia. Representing the above on a pie chart, the angle of the sector representing the participants from Asia is?

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A 150<sup style='font-size: smaller;'>o</sup>
B 67\(\frac{1}{2}\)<sup style='font-size: smaller;'>o</sup>
C 67<sup style='font-size: smaller;'>o</sup>
D 135<sup style='font-size: smaller;'>o</sup>
E 68<sup style='font-size: smaller;'>o</sup>

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Question 27:

The diameter of a metal rod is measured as 23.40 cm to four significant figures. What is the maximum error in the measurement?

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A 0.05cm
B 0.5cm
C 0.045cm
D 0.005cm
E 0.004cm

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Question 28:

In a regular polygon of n sides, each interior angle is 144o. Find n

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A 12
B 11
C 10
D 8
E 6F

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Question 29:

Simplify \(\frac{3}{2x - 1}\) + \(\frac{2 - x}{x - 2}\)

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A \(\frac{2 - x}{(2x - 1)(x - 2)}\)
B \(\frac{5 - x}{(2x - 1)(x - 2)}\)
C \(\frac{4 - 2x}{2x - 1}\)
D \(\frac{6 - 3x}{(2x - 1)(x - 2)}\)

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Question 30:

The solution to the quadratic equation 5 + 3x - 2x² = 0 is

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A (\(\frac{5}{2}\), 1)
B (5, 3)
C -(\(\frac{5}{2}\), -1)
D (\(\frac{5}{2}\), -1)

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