4. three pipes in a school building are
leaking. after 30 minutes, pipe a has
leaked gallon of water. after 45
minutes, pipe b has leaked 11
gallons of water. after 20 minutes,
pipe c has leaked – gallon of water.
which sentence is true?
a pipe a is leaking at the fastest
rate.
b pipe c is leaking at the slowest
rate.
c pipes a and c are leaking at the
same rate.
d pipes a and b are leaking at a
faster rate than pipe c.