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Mathematics Past Questions and Answers

Jamb Mathematics Questions

Question 11:

Solve the simultaneous equations \(\frac{2}{x} - {\frac{3}{y}}\) = 2, \(\frac{4}{x} + {\frac{3}{y}}\) = 10

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A X = \(\frac{3}{2}\), y = \(\frac{3}{2}\)
B X = \(\frac{1}{2}\), y = \(\frac{3}{2}\)
C X = \(\frac{-1}{2}\), y = \(\frac{-3}{2}\)
D X = \(\frac{1}{2}\), y = \(\frac{3}{2}\)

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Question 12:

Find the minimum value of X² - 3x + 2 for all real values of x

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A -\(\frac{1}{4}\)
B -\(\frac{1}{2}\)
C \(\frac{1}{4}\)
D \(\frac{1}{2}\)

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Question 13:

Make F the subject of the formula t = \(\sqrt{\frac{v}{\frac{1}{f} + \frac{1}{g}}}\)

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A \(\frac{gv-t^2}{gt^2}\)
B \(\frac{gt^2}{gv-t^2}\)
C \(\frac{v}{\frac{1}{t^2} - \frac{1}{g}}\)
D \(\frac{gv}{t^2 - g}\)

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Question 14:

What value of g will make the expression 4x² - 18xy + g a perfect square?

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A 9
B \(\frac{9y^2}{4}\)
C \(81y^2\)
D \(\frac{18y^2}{4}\)

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Question 15:

Find the value of k if \(\frac{5 + 2r}{(r + 1)(r - 2)}\) expressed in partial fraction is \(\frac{k}{r - 2}\) + \(\frac{L}{r + 1}\) where K and L are constants

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A 3
B 2
C 1
D -1

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