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Amma puts the stew on the stove at the time on clock A and switches it off at the time on clock B. Through how many degrees does the minute hand turn in between?

Competition practiceClocks
  • A252°
  • B21°
  • C42°
  • D258°

Step-by-Step Solution

A shows 7:10 and B shows 7:52, so 42 minutes pass. The minute hand turns 6° every minute: °. (21° is the hour hand's turn, at 0.5° a minute.)
Answer: A) 252°

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