Question

seats are arranged in rows in a auditorium.each row has 5 more than the previous row 15th row contains 32 seats.which row has 92 seats
row 15 = 32 seats
every row after that has 5 more than the previous one. so
32+ 5 X (how many rows) = 92 seats
92-32=60 and 60 /5 = 12. so 15+12= 27th row

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