Compilation of all things math --- questions obtained via students' consultation, related math sites.
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Monday, December 15, 2014
P5 Whole Numbers (fr: Ranice)3
Q3.
Mr Hua bought 40 packs of Christmas cards at the price of $12 per pack.He sent 30 of these cards to his friends and sold the rest at $3 each.If he made a profit of $270,find the number of Christmas cards in each pack.
