Question
Rael had 3 more brown cards than black cards at first. His mother then gave him 18 brown cards and his schoolmates gave him 120 black cards for Christmas. Rael realised that he now had four times as many black cards as brown cards. How many cards did Rael have in the end?
4 m

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Rael had 3 more brown cards than black cards at first. His mother then gave him 18 brown cards and his schoolmates gave him 120 black cards for Christmas. Rael realised that he now had four times as many black cards as brown cards. How many cards did Rael have in the end?