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Mathematics 1993 JAMB Past Questions

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31

If two angles of a triangle are 30° each and the longest side is 10cm. Calculate the length of each of the other sides.

  • A. 5cm
  • B. 4cm
  • C. 3√3 cm
  • D. \(\frac{10\sqrt{3}}{3}\)cm
View Answer & Discuss (4) JAMB 1993
32
Quantities in the proportions 1, 4, 6, 7 are to be represented in a pie chart. Calculate the angle of the sector with proportion 7
  • A. 20o
  • B. 80o
  • C. 120o
  • D. 140o
View Answer & Discuss JAMB 1993
33
The following marks were obtained by twenty students in an examination: 53, 30, 70, 84, 59, 43, 90, 20, 78, 48, 44, 60, 81, 73, 50, 37, 67, 68, 64, 52. Find the numbers of students who scored at least 50 marks
  • A. 6
  • B. 10
  • C. 13
  • D. 14
View Answer & Discuss (2) JAMB 1993
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34

\(\begin{array}{c|c} Weight(s) & 0 -10 & 10 - 20 & 20 - 30 &30 - 40 & 40 - 50\\ \hline \text{Number of coconuts} & 10 & 27 & 19 & 6 & 2\end{array}\)

Weight(g) 0-10 10-20 20-30 30-40 40-50
No. of coconuts 10 27 19 6 2

Estimate the mode of the frequency distribution above

  • A. 13.2g
  • B. 15.0g
  • C. 16.8g
  • D. 17.5g
View Answer & Discuss (2) JAMB 1993
35
The mean of the ages of ten secondary school pupils is 16 but when the age of their teacher is added to it the men becomes 19. Find the age of the teacher
  • A. 27
  • B. 35
  • C. 38
  • D. 49
View Answer & Discuss JAMB 1993
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