Jamb Mathematics Past Questions and Answers

Question 76:

• JAMB 2019

Find the value of k in the equation: \(\sqrt{28} + \sqrt{112} - \sqrt{k} = \sqrt{175}\)

A. \(\sqrt{28}\)
B. 7
C. 28
D. \(\sqrt{7}\)

Question 77:

• JAMB 2019

Evaluate \(\frac{2\log_{3} 9 \times \log_{3} 81^{-2}}{\log_{5} 625}\)

A. 4
B. -32
C. -8
D. 16

Question 78:

• JAMB 2019

Find the value of x for \(\frac{2 + 2x}{3} - 2 \geq \frac{4x - 6}{5}\)

A. X \(\geq\) -5
B. X \(\geq\) -1
C. X \(\leq\) -1
D. X \(\leq\) 3

Question 79:

• JAMB 2019

Determine the values for which \(x^2 - 7x + 10 \leq 0\)

A. 2 \(\leq\) x \(\geq\) 5
B. -2 \(\leq\) x \(\leq\) 3
C. -2 \(\leq\) x \(\geq\) 3
D. 2 \(\leq\) x \(\leq\) 5

Question 80:

• JAMB 2019

Find the polynomial if given q(x) = x\(^2\) - x - 5, d(x) = 3x - 1 and r(x) = 7.

A. 3x\(^3\) - 4x\(^2\) - 14x + 12
B. 3x\(^2\) + 3x - 7
C. 3x\(^3\) + 4x\(^2\) + 14x - 12
D. 3x\(^2\) - 3x + 4