Question
Tommy had some curry powder. He used the same amount of curry powder each day. By the end of Day 9, he had 570 g of curry powder left. At the end of Day 10, he had 530 g of curry powder left. How much curry powder did Tommy have at first?
4 m

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Tommy had some curry powder. He used the same amount of curry powder each day. By the end of Day 9, he had 570 g of curry powder left. At the end of Day 10, he had 530 g of curry powder left. How much curry powder did Tommy have at first?