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Meng Jianping fifth grade mathematics answer.
:(2+3+5+7+9+ 10+ 14+ 14+ 13+ 17+2 1+24+24)÷(6+ 1),

= 158÷7,

=22…4,

Then the number of people left in this group must be divided by 7 to leave 4.

Because 4+7= 1 1,

1 1+7= 18,

18+7=25,

So the number of people in the remaining group is 4, 1 1,18,25,

The group with 18 people in the table is 12;

A: The remaining group is 12.

Please adopt it.