ALGEBRA - Jamb Mathematics Past Questions and Answers

Question 516:

• JAMB 2011

Solve the inequality -6(x + 3) \(\leq\) 4(x - 2)

A. X \(\leq\) 2
B. X \(\geq\) -1
C. X \(\geq\) -2
D. X \(\leq\) -1

Question 517:

• 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 518:

• 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 519:

• 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 520:

• 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