How many minutes?
Two cyclists are racing around a circular track. Pierre can ride once around the track in 6 minutes. Louis takes 4 minutes.
How many minutes will it take for Louis to lap Pierre?
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Take from the pack the thirteen cards forming the suit of diamonds and arrange them in this order face downwards with the 3 at the top and 5 at the bottom: 3, 8, 7, Ace, Queen, 6, 4, 2, Jack, King, 10, 9, 5. Now play them out in a row on the table in this way. As you...