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Part ACSIR NET December 2024only-the-two-endpoints-survive

Only the two endpoints survive

The value of (1 − 1/2025)(1 − 1/2024)(1 − 1/2023)…(1 − 1/2001) is

  1. A.(1 − 1/79)
  2. B.(1 − 1/80)
  3. C.(1 − 1/81)✓ Correct
  4. D.(1 − 1/82)

You have the answer. Trap Analysis is why the other three were written.

Not a worked solution repeated four times — the specific reasoning error each wrong option was built to reward, and why this one tests execution slip.

See pricing

50 are analysed free — try those first.

The trap it tests

Execution slip

The idea was right. The computation was not.

Drill statements like this

Last revised . Found a mistake? Tell us — corrections are the fastest thing we act on.

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