GATE 2025 ST – Question 9
General Aptitude · Quantitative Aptitude: Data Interpretation, Arithmetic and Number Computation · 2 marks · Multiple choice
Variety P potatoes cost ₹800 per 5 kg; Q costs ₹800 per 4 kg. A mixture sells at ₹192/kg for 8% profit. Find the weight ratio P:Q.
- 5:4
- 3:4
- 3:2
- 1:1
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Show answer and explanation
Correct answer: (A) 5:4
Explanation
The respective costs are ₹160 and ₹200 per kg. Mixture cost=192/1.08=1600/9. By alligation P:Q=(200−1600/9):(1600/9−160)=200:160=**5:4, A**.
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