Question
Adriel sits on a chair in the lecture hall.
There are 2 chairs to his right and 5 chairs to his left.
There are 7 rows in front of his and 2 rows behind his.
If there is equal number of chairs in each row, how many chairs are there in the lecture hall?
4 m

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Adriel sits on a chair in the lecture hall.
There are 2 chairs to his right and 5 chairs to his left.
There are 7 rows in front of his and 2 rows behind his.
If there is equal number of chairs in each row, how many chairs are there in the lecture hall?