Container A has 150 more marbles than Container B. If 30 marbles are being transferred from Container B to Container A, there will be thrice as many marbles in Container A as Container B. How many marbles are there in Container A in the beginning?
Solution
2 units --> 30 + 150 + 30 = 210
1 unit --> 210 divided by 2 = 105
Container A in the beginning
--> 3 units - 30
= (3 x 105) - 30
= 315 - 30
= 285
Answer: 285 marbles
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