Sonali collect 40 mushrooms every half hour . But she drops half of the collected in every 2 hours . The number of mushrooms collected by her at the end of 8th hour will be
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Mushroom collected in half hour=40
Mushrooms dropped after every 2 hours =40/2 = 20
Therefore,Mushrooms collected in 8 hours=40×16=640
No.of mushrooms at the end of 8 hours= 640/16=40 mushrooms
Therefore, number of mushrooms collected by her at the end of 8 hours is 40.
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Answer:
150 mushrooms at the end of 8th hr
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