Jamb Mathematics 2006 Past Questions and Answers

Question 46:

• JAMB 2006

How many terms of the series 3, -6, +12, - 24, + ..... are needed to make a total of 1-2⁸?

A. 12
B. 10
C. 9
D. 8

Question 47:

• JAMB 2006

Find p, q for which \(\begin{pmatrix} 2p & 8 \\ 3 & -5q \end{pmatrix}\)\(\begin{pmatrix} 1 \\ 2\end{pmatrix}\)\(\begin{pmatrix}24 \\ -17\end{pmatrix}\)

A. -4
B. 45
C. 4,2
D. 2

Question 48:

• JAMB 2006

If x = \(\begin{pmatrix} 1 & 0 & 1 \\ 2 & -1 & 0 \\ -1 & 0 & 1\end{pmatrix}\) and y = \(\begin{pmatrix} -1 & 1 & 2 \\ 0 & -1 & -1 \\ 2 & 0 & 1\end{pmatrix}\)
find 2x - y

A. \(\begin{pmatrix} 3 & -1 & 0 \\ 4 & -3 & -1 \\ -4 & 1 & 1\end{pmatrix}\)
B. \(\begin{pmatrix} 3 & -1 & 0 \\ 4 & -1 & 1 \\ -4 & 1 & 1\end{pmatrix}\)
C. \(\begin{pmatrix} 3 & -1 & 0 \\ 4 & -3 & 1 \\ -4 & 1 & 1\end{pmatrix}\)
D. \(\begin{pmatrix} 3 & -1 & 0 \\ 4 & 1 & 1 \\ -4 & -1 & 1\end{pmatrix}\)

Question 49:

• JAMB 2006

Find the roots of x\(^3\) - 2x\(^2\) - 5x + 6 = 0

A. 1, -2, 3
B. 1, 2, -3,
C. -1, -2, 3
D. -1, 2, -3

Question 50:

• JAMB 2006

The response of 160 pupils in a school asked to indicate their favourite subjects is given in the bar chart above. What percentage of the pupils have English and Health education as the their favourite subjects?

A. 55%
B. 52%
C. 36%
D. 22%