The total charge for the rooms is 197.55
The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given,
The charge for one room= $21.95
Total number of rooms = 3+2+4=9 rooms
We have to apply unitary method here
Total charges for the room= Charge for one room × total number of room
Substitute the values
Total charge for the room= 21.95×9=197.55
Hence, the total charge for the room is 197.55
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