Question 18
VariationIf x is inversely proportional to y and x = 2½ when y = 2, find x if y = 4.
- A.2¼
- B.5
- C.4
- D.1¼
Show the answer and explanation
Answer: D (1¼)
Explanation
xy is constant: 2½ × 2 = 5. So x = 5/4 = 1¼.
If x is inversely proportional to y and x = 2½ when y = 2, find x if y = 4.
Answer: D (1¼)
xy is constant: 2½ × 2 = 5. So x = 5/4 = 1¼.