Question
38 of a packet of marbles were yellow. 45 of the remaining marbles were white and the rest were black. If there were 42 more white marbles than black marbles, how many marbles were there in the packet altogether?
4 m

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38 of a packet of marbles were yellow. 45 of the remaining marbles were white and the rest were black. If there were 42 more white marbles than black marbles, how many marbles were there in the packet altogether?