Answer:
Please see the answer
Step-by-step explanation:
Now we define the question in this approach
P= # of houses with patio only.
Q= # of houses with pool only.
R= # of houses with patio & pool.
S= # of houses with no patio & no pool.
Given P+Q+R+S=75
& P+R=48
What is Q+R? (1)
Solving the first two equations
Q+S+48=75
Q+S=27 (2)
Now let's look at the statements
Statement 1
P=38 unnecessary and insufficient.
Statement 2
R=S
Substituting in (1)
Q+S?
We know form (2) that Q+S=27
hence sufficient.
