Question
Three girls, Gabby, Anna and Gem had a total of 3600 marbles. Some exchanges were made. First, Gabby gave Anna as many marbles as Anna had. After that, Anna gave 14 of whatever she had then to Gem. Finally, Gem gave 15 of whatever she had to Gabby. As a result, they each had the same number of marbles. How many marbles did Gabby have at first?
5 m

Click button first when a symbol is required. X

Three girls, Gabby, Anna and Gem had a total of 3600 marbles. Some exchanges were made. First, Gabby gave Anna as many marbles as Anna had. After that, Anna gave 14 of whatever she had then to Gem. Finally, Gem gave 15 of whatever she had to Gabby. As a result, they each had the same number of marbles. How many marbles did Gabby have at first?