Question
Glen had 4 more pink marbles than yellow marbles at first. His uncle then gave him 19 pink marbles and his colleagues gave him 105 yellow marbles for Christmas. Glen realised that he now had thrice as many yellow marbles as pink marbles. How many marbles did Glen have in the end?
4 m

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Glen had 4 more pink marbles than yellow marbles at first. His uncle then gave him 19 pink marbles and his colleagues gave him 105 yellow marbles for Christmas. Glen realised that he now had thrice as many yellow marbles as pink marbles. How many marbles did Glen have in the end?