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Five boxes — P, Q, R, S and T — have different weights. R is heavier than Q but lighter than S. T is heavier than S. P is the lightest, and Q is heavier than P. If Q weighs 20 kg and S weighs 30 kg, which of the following could be R's weight?

Competition practicePuzzles & Seating
  • A25 kg
  • B18 kg
  • C32 kg
  • D34 kg

Step-by-Step Solution

R is heavier than Q (20 kg) but lighter than S (30 kg), so R must lie between 20 and 30 kg; only 25 kg qualifies.
Answer: A) 25 kg

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