1.

1). 64.22). 62.53). 65.24). 60.2

Answer»

Weight of B1 = 65 kg.

Average weight of B1, B2 and B3 = 64 kg.

∴ Total weight of B1, B2 and B3 = 3 × 64 = 192 kg.

∴ Total weight of B2 and B3 = 186 – 65 = 127 kg.

Average weight of B1, B4 and B5 = 58 kg.

∴ Total weight of B1, B4 and B5 = 174 kg.

∴ Total weight of B1, B2, B3, B4 and B5 = 127 + 174 = 301 kg.

∴ Average weight of B1, B2, B3, B4 and B5 = 301/5 = 60.2 kg.



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