Jamb Mathematics 2001 Past Questions and Answers

Question 11:

• JAMB 2001

Find the integral values of x and y satisfying the inequality 3y + 5x \(\leq\) 15, given that y > 0, y < 3 and x > 0.

A. (1,1), (1,2), (1,3)
B. (1,1), (2,1), (1,3)
C. (1,1), (3,1), (2,2)
D. (1,1), (1,2), (2,1)

Question 12:

• JAMB 2001

Solve the equations
m² + n² = 29
m + n = 7

A. (2, 3) and ( 3, 5)
B. (2, 5) and (5, 2)
C. (5, 2) and ( 5, 3)
D. (5, 3) and (3, 5)

Question 13:

• JAMB 2001

An operation * is defined on the set of real numbers by a*b = a + b + 1. If the identity elements is -1, find the inverse of the element 2 under *.

A. 4
B. Zero
C. -2
D. -4

Question 14:

• JAMB 2001

The sixth term of an A.P is half of its twelfth term. The first term of the A.P is equal to

A. Zero
B. Half of the common difference
C. Double the common difference
D. The common difference

Question 15:

• JAMB 2001

Factorize 4x² - 9y² + 20x + 25

A. (2x -3y + 5)(2x - 3y - 5)
B. (2x - 3y)(2x + 3y)
C. (2x - 3y +5)(2x + 3y + 5)
D. (2x + 5)(2x - 9y +5)