Q7: Hamid, Kevin and James each has some stickers. 20% of Hamid's stickers is equal to 30% of Kevin's stickers James's stickers is 50% of the total number of Hamid's and Kevin's stickers. If Hamid...

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Extracted text: Q7: Hamid, Kevin and James each has some stickers. 20% of Hamid's stickers is equal to 30% of Kevin's stickers James's stickers is 50% of the total number of Hamid's and Kevin's stickers. If Hamid gives 40% of his stickers to James James will have 629 stickers now. Find the total number of stickers that the 3 children have.