Question
PSLE
Luke had 30 more coins than Xavier at first. Xavier gave 15 of his coins to Luke. Luke now has 3 times as many coins as Xavier. How many coins did Xavier have at first?
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PSLE
Luke had 30 more coins than Xavier at first. Xavier gave 15 of his coins to Luke. Luke now has 3 times as many coins as Xavier. How many coins did Xavier have at first?