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The volume of a small balloon is 2 liters and a larger balloon is 5 liters. The small balloon is increased at a rate of 0.3 liters per second. The larger

balloon is decreased at a rate of 0.12 liters per second. After how many seconds will the two balloons have the same volume?


Let after time t sec.both have same volume
2 + 0.3t = 5 - 0.12t
0.42t = 3
t = 300/42
t = 7.14sec.
0 0 0
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