seats are arraged in 15 rows in an auditorium. each row has 10 seats more than the back. the last row has 50 seats find out the total number of chairs
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Answer:
25
Step-by-step explanation:
total seats 1600
total rows 65
5 rows having 20 seats each, means, 5*20=100
remaining seats is 1600-100=1500
remaing rows is 65-5=60
no. of seats in each row is
(remaining seats/remaining rows)
=1500/60=25
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