The average weight of a group of members increased from 28 kg to 32 kg, when three new members of weight 32 kg, 34 kg and 46 kg join the group. Find the initial number of members in the group.
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The average weight of a group of members increased from 28 kg to 32 kg, when three new members of weight 32 kg, 34 kg and 46 kg join the group. Find the initial number of members in the group.