Vanmotan wrote:

Of 120 hotel rooms rented one night, some were suits rented for $115 each and the rest were double rooms rented for $85 each. If the total revenue from the room rentals ffor this night was $10890, how many suits were rented?

A) 23

B) 35

C) 54

D) 94

E) 99

Let the number of suits rented = x

Then number of double rooms rented = 120-x

Revenue from suits = 115*x

Revenue from double rooms = 85*(120-x)

Total revenue = 115x + 85(120-x) = 10890

=> 115x + 10200 - 85x = 10890

=> 30x = 690

=> x = 23

Thus, 23 suits were rented.

A) is the answer.

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