Simplification · Question 10 · Medium

Find the value of (1 − 1/3)(1 − 1/4)(1 − 1/5) ... (1 − 1/50).

  1. 1/50
  2. 1/25
  3. 2/25
  4. 49/50
Answer and explanation

Answer: B. 1/25

Explanation: The product is 2/3 × 3/4 × 4/5 × ... × 49/50. Everything cancels except 2/50 = 1/25.

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