Question
PSLE
Ivan has some wafers. If he gives each of his friends 3 wafers instead, he will have 15 left. If he gives each of them 6 wafers, there is no wafer left. How many wafers does Ivan have?
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PSLE
Ivan has some wafers. If he gives each of his friends 3 wafers instead, he will have 15 left. If he gives each of them 6 wafers, there is no wafer left. How many wafers does Ivan have?