Question
Shannon has four times as many erasers as Xandra. After Xandra has bought another 98 erasers, Xandra has twice as many erasers as Shannon. How many erasers does Xandra have at first?
4 m

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Shannon has four times as many erasers as Xandra. After Xandra has bought another 98 erasers, Xandra has twice as many erasers as Shannon. How many erasers does Xandra have at first?