Variation Jamb Mathematics Past Questions
Question 16
P varies jointly as m and u, and varies inversely as q. Given that p = 4, m = 3 and u = 2 and q = 1, find the value of p when m = 6, u = 4 and q =\(\frac{8}{5}\)
- A. 12\(\frac{8}{5}\)
- B. 15
- C. 10
- D. 28\(\frac{8}{5}\)
Question 17
If r varies inversely as the square root of s and t, how does s vary with r and t?
- A. s varies inversely as r and t2
- B. s varies inverely as r2 and t
- C. s varies directly as r2 and t2
- D. s varies directly as r and t
Question 18
If y varies directly as \(\sqrt{n}\) and y = 4 when n = 4, find y when n = 1\(\frac{7}{9}\)
- A. \(\sqrt{17}\)
- B. \(\frac{4}{3}\)
- C. \(\frac{8}{3}\)
- D. \(\frac{2}{3}\)
Question 19
U is inversely proportional to the cube of V and U = 81 when V = 2. Find U when V = 3
- A. 24
- B. 27
- C. 32
- D. 36
Question 20
If x varies directly as square root of y and x = 81 when y = 9, Find x when y = 1\(\frac{7}{9}\)
- A. 20\(\frac{1}{4}\)
- B. 27
- C. 2\(\frac{1}{4}\)
- D. 36
