Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).
Ratios, Proportions & PercentagesDirect and Inverse Variations
If $y$ is directly proportional to $x^2$, and when $x = 2$, $y = 20$, what is the value of $y$ when $x = 3$?
- A.$30$
- B.$60$
- C.$45$Correct answer
- D.$90$
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Practice these MCQs in the appQuick fact: The value of $y$ when $x = 3$ is $45$.