Question
Howard strings some pink and grey pearls to make a necklace. For every 4 pink pearls Howard uses, he uses 5 grey pearls. He uses a total of 72 pink and grey pearls for the necklace. How many more grey pearls than pink pearls does he use?
4 m

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Howard strings some pink and grey pearls to make a necklace. For every 4 pink pearls Howard uses, he uses 5 grey pearls. He uses a total of 72 pink and grey pearls for the necklace. How many more grey pearls than pink pearls does he use?