Variation Jamb Mathematics Past Questions
Question 1
x is directly proportional to y and inversely proportional to z. If x = 9 when y = 24 and z = 8, what is the value of x when y = 5 and z = 6?
- A. \(\frac{5}{6}\)
- B. \(11\)
- C. \(3 \frac{3}{5}\)
- D. \(2 \frac{1}{2}\)
- E. \(1 \frac{1}{5}\)
Question 2
If P varies inversely as the square root of q, where p = 3 and q = 16, find the value of q when p = 4.
- A. 12
- B. 8
- C. 9
- D. 16
Question 3
The sum of two numbers is twice their difference. If the difference of the numbers is P, find the larger of the two numbers
- A. p/2
- B. 3p/2
- C. 5p/2
- D. 3p
Question 4
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 5
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
