A cinema hall charges Rs. 150 per ticket and sells 300 tickets when the show is full. For every Rs. 10 increase in ticket price, 20 fewer tickets are sold.
(i) Write an expression for the daily revenue R (in rupees) in terms of x, where x is the number of Rs. 10 increases.
(ii) Find the value(s) of x for which the revenue remains Rs. 45,000.
a. Write an expression for the daily revenue R (in rupees) in terms of x, where x is the number of Rs. 10 increases.
b. Find the value(s) of x for which the revenue remains Rs. 45,000.