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Mathematics Past Questions and Answers

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Jamb 1988 Mathematics Questions

Question 41:

PQR is a triangle in which PQ = 10cm and QPR = 60^oS is a point equidistant from P and Q. Also S is a point equidistant from PQ and PR. If U is the foot of the perpendicular from S on PR, find the length SU in cm to one decimal place

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A 2.7
B 4.33
C 3.1
D 3.3

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Question 42:

If x and y represent the mean and the median respectively of the following set of numbers 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, find the \(\frac{x}{y}\) correct to one decimal place

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A 18
B 15
C 1.0
D 5

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Question 43:

If two dice are thrown together, what is the probability of obtaining at least a score of 10?

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A \(\frac{1}{6}\)
B \(\frac{1}{12}\)
C \(\frac{5}{6}\)
D \(\frac{11}{12}\)

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Question 44:

In the figure, PQRS is a circle. If chords QR and RS are equal, calculate the value of x

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A 80<sup style='font-size: smaller;'>o</sup>
B 60<sup style='font-size: smaller;'>o</sup>
C 45<sup style='font-size: smaller;'>o</sup>
D 40<sup style='font-size: smaller;'>o</sup>

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Question 45:

In the figure, PQ is a parallel to ST and QRS = 40^o. Find the value of x

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A 55<sup style='font-size: smaller;'>o</sup>
B 60<sup style='font-size: smaller;'>o</sup>
C 65<sup style='font-size: smaller;'>o</sup>
D 75<sup style='font-size: smaller;'>o</sup>

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