A 56.8 kg concrete slab can be balanced by two concrete pillars,each weighing 41.3 kg. How many concrete pillars are needed to support slabs weigh 681.6 kg ?
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11
Answer:
Number of concrete slabs = 681.6kg/56.8 kg
= 12
Concrete pillars are needed to support slabs weigh 681.6 kg= 12×2
= 24
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2
hi mate....
your answer is : 24........
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