Given:
Cost to rent a raft = $7 per person
Number of people a raft can hold = 6
Lunch cost = $3 per raft
To find:
The total cost for a group of 6.
Solution:
A raft can hold 6 people. So, one raft is required for group of 6.
Lunch cost = $3
Cost to rent a raft for one person = $7
Cost to rent a raft for 6 person = 6 × $7 = $42
Now,
Total cost = Lunch cost + Cost to rent a raft for 6 person
= $3 + $42
= $45
Therefore, the total cost for a group of 6 is $45.
