SSC Steno Grade C and D 6 Aug 2025 Shift 1 Paper

Four friends X, Y, Z, and W each have some marbles. X gives Y as many marbles as he already has, gives Z twice the amount of marbles Z already has, and gives W thrice the amount of marbles W already has. Then, W gives 1/6th of his marbles to Y. Afterward, X gives 10% of the marbles he now owns to Z and 20% to Y. Finally, all of them have 50 marbles each. What was the original number of marbles each friend had?