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Mathematics 2019 JAMB Past Questions

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1

Make q the subject of the formula in the equation \(\frac{mn}{a^2} - \frac{pq}{b^2} = 1\)

  • A. \(q = \frac{b^2(mn - a^2)}{a^2 p}\)
  • B. \(q = \frac{m^2 n - a^2}{p^2}\)
  • C. \(q = \frac{mn - 2b^2}{a^2}\)
  • D. \(q = \frac{b^2 (n^2 - ma^2)}{n}\)
View Answer & Discuss (5) JAMB 2019
2

The angle of elevation of the top of a tree from a point on the ground 60m away from the foot of the tree is 78°. Find the height of the tree correct to the nearest whole number.

  • A. 148m
  • B. 382m
  • C. 282m
  • D. 248m
View Answer & Discuss (6) JAMB 2019
3

A binary operation \(\otimes\) is defined by \(m \otimes n = mn + m - n\) on the set of real numbers, for all m, n \(\in\) R. Find the value of 3 \(\otimes\) (2 \(\otimes\) 4).

  • A. 6
  • B. 25
  • C. 15
  • D. 18
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4
Age in years 7 8 9 10 11
No of pupils 4 13 30 44 9

The table above shows the number of pupils in a class with respect to their ages. If a pie chart is constructed to represent the age, the angle corresponding to 8 years old is

  • A. 48.6°
  • B. 56.3°
  • C. 46.8°
  • D. 13°
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5

In a class of 50 students, 40 students offered Physics and 30 offered Biology. How many offered both Physics and Biology?

  • A. 42
  • B. 20
  • C. 70
  • D. 54
View Answer & Discuss JAMB 2019
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