Question
Cathy had 40 more mochi balls than Penelope at first. After Penelope had eaten 11 of her mochi balls, Cathy had four times as many mochi balls as Penelope. How many mochi balls did Cathy have at first?
4 m

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Cathy had 40 more mochi balls than Penelope at first. After Penelope had eaten 11 of her mochi balls, Cathy had four times as many mochi balls as Penelope. How many mochi balls did Cathy have at first?