Question
Oliver had 40% as many buttons as Tom. After Oliver and Tom bought another 76 buttons and 40 buttons respectively, Oliver had 60% more buttons than Tom. How many buttons did Oliver have at first?
4 m

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Oliver had 40% as many buttons as Tom. After Oliver and Tom bought another 76 buttons and 40 buttons respectively, Oliver had 60% more buttons than Tom. How many buttons did Oliver have at first?