Answer:
Option (a) is correct.
The cost of 3 rooms for 4 days is $ 900
Step-by-step explanation:
Given : The cost of a room is $ 75 per night.
We have to find the cost of getting 3 rooms for 4 days.
Since, The cost of 1 room for 1 night is $ 75
Cost of 3 room for 1 night is $(75 × 3) =$225
And they spend 4 days there , So cost will again multiply by 4 .
So, The cost of 3 rooms for 4 days is $ (225 × 4 ) = $ 900
Thus, The cost of 3 rooms for 4 days is $ 900
