Question
Diana had 10 less pizzas than Risa at first. After Diana had eaten 5 pizzas, Risa had twice as many pizzas as Diana in the end. How many pizzas did Risa have?
4 m

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Diana had 10 less pizzas than Risa at first. After Diana had eaten 5 pizzas, Risa had twice as many pizzas as Diana in the end. How many pizzas did Risa have?