Question
The average number of playing cards John and Justin had was 445. The average number of playing cards John and Luke had was 250. If the ratio of Justin's playing cards to Luke's playing cards was 5 : 2, find the number of playing cards John had.
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The average number of playing cards John and Justin had was 445. The average number of playing cards John and Luke had was 250. If the ratio of Justin's playing cards to Luke's playing cards was 5 : 2, find the number of playing cards John had.