the weight of 56 books is 8 kg. what is the weight of 152 such books?
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- The weight of 56 books is 8 kg.
∴ ''' '' '' '' 1 '' 8/56 = 1/7 kg
∴ '' '' '' 152 '' '' = 1/7 x 152 = 21.71429 kg.
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56:8::152:x
56/8 = 152/x
56x = 152*8
x = 1216/56
x = 21.7
56/8 = 152/x
56x = 152*8
x = 1216/56
x = 21.7
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