Question

In an auditorium, seats are arranged in rows and columns. The number of rows are equal to the number of seats in each row. When the number of rows are doubled and the number of seats in each row is reduced by 10, the total number of seats increases by 300.
Based on the above situation, answer the following questions:
(i)If x is taken as the number of rows in original arrangement, give the quadratic
equation to represent the situation.
(ii) How many number of rows are there in the original arrangement?
(iii) How many number seats are there in the auditorium in original arrangement? (iv) How many number seats are there in the auditorium after re-arrangement? (v)How many number columns are there in the auditorium after re-arrangement?

Answer 1

Step-by-step explanation:

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