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Six bells ring at intervals of 2, 4, 6, 8, 10 and 12 seconds respectively. Once, when they start ringing simultaneously for the first time, then…

CUET UG 2025 — General Test Quantitative Reasoning

2025mcqmedium

Six bells ring at intervals of 2, 4, 6, 8, 10 and 12 seconds respectively. Once, when they start ringing simultaneously for the first time, then determine how many times they will ring together in a continuous span of 30 minutes?

Official previous-year question

Held on 27 May 2025 · Verified 13 Jul 2026.

Options

  1. A

    10 times

  2. B

    15 times

  3. C

    20 times

  4. D

    16 times

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