There were 18 single rooms and 6 suites booked.
Step-by-step explanation:
Given,
Cost of one single room = $90
Cost of one suite = $150
Total rooms booked = 24
Total amount earned = $2520
Let,
Number of single rooms = x
Number of suite = y
According to given statement;
x+y=24 Eqn 1
90x+150y=2520 Eqn 2
Multiplying Eqn 1 by 90
Subtracting Eqn 3 from Eqn 2
Dividing both sides by 60
Putting y=6 in Eqn 1
There were 18 single rooms and 6 suites booked.
Keywords: linear equation, variable
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