Four car rental agencies P, Q, R and S rented a plot for parking their cars during the night. P parked 15 cars for 12 days, Q parked 12 cars for 20 days, R parked 18 cars for 18 days and S parked 16 cars for 15 days. If P paid Rs. 1125 as rent for parking his cars, what is the total rent paid by all the four agencies?
