the weight of 56 book is 8 kg. what is the weight of 154 such book? how many such book weight 5kg?
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1
weight of 154 book = 154×7= 1078
no. of book =7/5
no. of book =7/5
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0
8/56=0.1428571428571429
0.1428571428571429* 154=22
154 books weigh 22 kg
5/0.1428571428571429= 34.99999999
So about 35 books weigh 5kg
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