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0 / 60 seg.
If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?
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Clue
IT WOULD TAKE 47 DAYS TO COVER HALF OF THE LAKE, AS THEY DOUBLE IN SIZE EVERY DAY
THE SON WILL CATCH UP WITH HIS FATHER IN 10 MINUTES. IN 10 MINUTES, THE SON WOULD HAVE TRAVELED HALF THE DISTANCE, SINCE HIS TOTAL TRAVELING TIME IS 20 MINUTES. THE FATHER STARTED 5 MINUTES EARLIER THAN THE SON, SO HE WOULD HAVE TRAVELED FOR A TOTAL OF 15 MINUTES WHEN HIS SON REACHED HIM. THEREFORE, THE FATHER WOULD HAVE ALSO TRAVELED HALF THE DISTANCE IN 15 MINUTES
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
IT WOULD TAKE 5 MINUTES. EACH MACHINE TAKES 5 MINUTES TO MAKE ITS WIDGET. THEREFORE, EACH OF THE 100 MACHINES WOULD HAVE FINISHED MAKING ITS WIDGET IN 5 MINUTES
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