GATE 2020 PI – Question 5

General Aptitude · Quantitative Aptitude: Data Interpretation, Arithmetic and Number Computation · 1 mark · Multiple choice

A product passes through five levels P,Q,R,S,T and then reaches customers. It costs₹120 at P and its price rises25% at each of the five levels. What do customers pay in rupees?

187.50
234.38
292.96
366.21

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Show answer and explanation

Correct answer: (D) 366.21

Explanation

Each stage multiplies the current price by1.25. Five increases give120(1.25)⁵=366.21094, or₹366.21, D. Applying25% only to the original cost would miss the compounding at successive stages.

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