Jamb Mathematics Past Questions and Answers

Question 2061:

• JAMB 2011

Solve the inequality x² + 2x > 15.

A. X < -3 or x > 5
B. -5 < x < 3
C. X < 3 or x > 5
D. X > 3 or x < -5

Question 2062:

• JAMB 2011

Find the sum of the first 18 terms of the series 3, 6, 9,..., 36.

A. 505
B. 513
C. 433
D. 635

Question 2063:

• JAMB 2011

The seconds term of a geometric series is 4 while the fourth term is 16. Find the sum of the first five terms

A. 60
B. 62
C. 54
D. 64

Question 2064:

• JAMB 2011

A binary operation \(\oplus\) om real numbers is defined by x \(\oplus\) y = xy + x + y for two real numbers x and y. Find the value of 3 \(\oplus\) - \(\frac{2}{3}\).

A. - \(\frac{1}{2}\)
B. \(\frac{1}{3}\)
C. -1
D. 2

Question 2065:

• JAMB 2011

If \(\begin{vmatrix} 2 & 3 \\ 5 & 3x \end{vmatrix}\) = \(\begin{vmatrix} 4 & 1 \\ 3 & 2x \end{vmatrix}\), find the value of x.

A. -6
B. 6
C. -12
D. 12