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0 / 60 seg.
A clock strikes six in five seconds. How long will it take to strike eleven?
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Clue
IT WILL TAKE TEN SECONDS. BECAUSE THE FIRST STRIKE SOUNDS AT ZERO SECONDS, TWO STRIKES SOUND IN ONE SECOND, THREE STRIKES IN TWO, ETC
66 SECONDS. WHEN THE CLOCK STRUCK SIX, THERE WERE ONLY 5 INTERVALS BETWEEN STROKES, AND EACH INTERVAL WAS 6 (30/5) SECONDS. BETWEEN THE FIRST AND TWELFTH STROKES THERE WILL BE 11 INTERVALS OF 6 SECONDS EACH; THEREFORE, 12 STROKES WILL TAKE 66 SECONDS
IT WILL TAKE 10.5 SECONDS FOR THE CLOCK TO STRIKE 10. WHILE STRIKING 7, THE CLOCK STRIKES THE FIRST GONG AT 7 O'CLOCK AND IT STRIKES 6 MORE AT REGULAR INTERVALS. THESE 6 INTERVALS TAKE 7 SECONDS, SO THE INTERVAL BETWEEN GONGS IS 7⁄6 SECONDS. HOWEVER TO STRIKE 10, THERE ARE 9 INTERVALS EACH TAKING 7⁄6 SECONDS. THIS ADDS UP TO A TOTAL OF (9 X 7⁄6) 10.5 SECONDS
THE LONG HAND PASSES THE SHORT HAND ONLY ELEVEN TIMES AND NOT TWELVE TIMES. THE LONG HAND PASSES THE SHORT HAND AT NOON, AND BETWEEN THE TIMES 1-2 PM, 2-3 PM, 3-4 PM, 4-5 PM, 5-6 PM, 6-7 PM, 7-8 PM, 8-9 PM, 9-10 PM, 10-11 PM - A TOTAL OF ELEVEN TIMES. NOTE THAT THE LONG HAND DOES NOT PASS THE SHORT HAND BETWEEN 11 PM AND 12 AM, IT JUST MEETS THE SHORT HAND AT 12 AM
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