ALGEBRA - Jamb Mathematics Past Questions and Answers

Question 416:

• JAMB 2002

If x varies directly as √n and x = 9 when n = 9, find x when n = (17/9)

A. 4
B. 27
C. √3
D. √17

Question 417:

• JAMB 2003

x varies directly as the product of u and v and inversely as their sum. If x = 3 when u = 3 and v = 1, what is the value of x if u = 3 and v = 3?

A. 3
B. 4
C. 6
D. 9

Question 418:

• JAMB 2003

Find the range of the value of x satisfying the inequalities 5 + x \(\leq\) 8 and 13 + x \(\geq\) 7

A. -3 \(\leq\) x \(\leq\) 3
B. 3 \(\leq\) x \(\leq\) 6
C. -6 \(\leq\) x \(\leq\) 3
D. -6 \(\leq\) x \(\leq\) -3

Question 419:

• JAMB 2003

The length a person can jump is inversely proportional to his weight. If a 20 kg person can jump 1.5 m, find the constant of proportionality

A. 60
B. 30
C. 20
D. 15

Question 420:

• JAMB 2003

Find the value of x and y respectively if 3x - 5y + 5 = 0 and 4x - 7y + 8 = 0

A. -5, -4
B. -4,. -5
C. 4, 5
D. 5, 4