yatodaniel
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The old analogue clock above the entrance to Victon Station only displays the correct time once every hour; at exactly 01:00, 02:00 etc. The clock’s minute hand moves at constant speed down from 12 to 6. This is 50% faster than the constant speed at which it climbs back up from 6 to 12. What time does the clock display when the correct time is 09:30?

Answer is 9:35. Can someone explain it please?
Last edited by yatodaniel; 4 weeks ago
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mqb2766
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(Original post by yatodaniel)
The old analogue clock above the entrance to Victon Station only displays the correct time once every hour; at exactly 01:00, 02:00 etc. The clock’s minute hand moves at constant speed down from 12 to 6. This is 50% faster than the constant speed at which it climbs back up from 6 to 12. What time does the clock display when the correct time is 09:30?

Answer is 9:35. Can someone explain it please?
There are a few ways to do it, so upload what you've tried. You're told the relative speeds in the two phases.
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