Question
There were 117 students at a hall at first. After 47 of the girls and 12 of the boys left, there were still 26 more boys than girls at the hall. How many boys were there in the end?
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There were 117 students at a hall at first. After 47 of the girls and 12 of the boys left, there were still 26 more boys than girls at the hall. How many boys were there in the end?