42. Equal Sweets Through Exchange John and Mary had 720 sweets. John gave 1/7 of his sweets to Mary. In return, Mary gave 1/6 of her sweets to John. In the end they had an equal number of sweets each. How many sweets did John have at first? Added 13 May 2012 Show Hint Show Solution Hint: Consider the total number of sweets and how the transfers affect each person's total. Solution: John had 420 sweets at first.
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