Question
There were 121 students at a hall at first. After 37 of the girls and 12 of the boys left, there were still 38 more boys than girls at the hall. How many boys were there in the end?
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There were 121 students at a hall at first. After 37 of the girls and 12 of the boys left, there were still 38 more boys than girls at the hall. How many boys were there in the end?