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Q133 (IAS/1996) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Quantitative aptitude topics Answer Verified

In an accurate clock, on a period of 2 hours 20 minutes, the minute hand will move over

Result
Your answer: —  Â·  Correct: C
Explanation

An accurate minute hand makes one full rotation (360°) in 60 minutes, so it moves 6° per minute. Convert 2 hours 20 minutes to minutes: 2×60 + 20 = 140 minutes. Multiply the time by the minute-hand rate: 140 minutes × 6°/minute = 840°. This direct calculation matches the worked result provided for the 2 hours 20 minutes interval. Therefore the minute hand will move through 840° in that period.

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