Four boxes A, B, C and D together contain 240 balls. Box B contains twice the number of balls in box A. Box C contains twice the number of balls in box B. Box D contains twice the number of balls in box C. If the number of balls in box A is x, then choose the correct equation that represents this situation.
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Answer:
15X = 240
Step-by-step explanation:
Box A contains X balls
Box B contains twice of Box A i.e. 2X
Box C contains twice of Box C i.e. 2* Box B = 4X
Box D contains twice of Box C i.e. 2* Box C = 8X
sum of all balls in all four box is 240
Box A + Box B + Box C + Box D = 240
X + 2X + 4X + 8X = 240
15X = 240
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