Jamb Mathematics 2008 Past Questions and Answers

Question 46:

• JAMB 2008

The result of rolling a fair die 150 times is as summarized in the table above. What is the probability of obtaining a 5

A. ³/₁₀
B. ¹/₅
C. ¹/₆
D. ¹/₁₀

Question 47:

• JAMB 2008

Find the values of x and y respectively if
\(\begin{pmatrix} 1 & 0 \\ -1 & -1\\ 2 & 2 \end{pmatrix}\) + \(\begin{pmatrix} x & 1 \\ -1 & 0\\ y & -2 \end{pmatrix}\) = \(\begin{pmatrix} -2 & 1 \\ -2 & -1\\ -3 & 0 \end{pmatrix}\)

A. -3, -2
B. -5, -3
C. -2, -5
D. -3, -5

Question 48:

• JAMB 2008

\(\begin{pmatrix} -2 & 1 \\ 2 & 3 \end{pmatrix}\) + \(\begin{pmatrix}p & q \\ r & s\end{pmatrix}\) = \(\begin{pmatrix} 1 & 0 \\0 & 1 \end{pmatrix}\). What is the value of r?

A. -\(\frac{1}{8}\)
B. \(\frac{3}{8}\)
C. \(\frac{5}{8}\)
D. \(\frac{1}{4}\)

Question 49:

• JAMB 2008

Calculate the distance between points L(-1, -6) and M(-3, -5)

A. √5
B. 2√3
C. √20
D. √50