state gov Allahabad High Court Group C Mock Test Series 2024 Quantitative Aptitude Ratio and Proportion Direct or Indirect Proportion
If P2 varies as R and Q2 varies as R, (P ≠ Q), then which of the following are correct?
1. P2 + Q2 varies as R.
2. PQ varies as R.
3. P2 - Q2 varies as R.
Select the correct answer using the code given below:
1
1 and 2 only
2
2 and 3 only
3
1 and 3 only
4
1, 2 and 3