A baseball team has three different pitchers. Randy pitched 333 innings and allowed 222 runs, Felix pitched 555 innings and allowed 444 runs, and Johan pitched 777 innings and allowed 555 runs.Which pitcher has the lowest number of runs allowed per inning?

the correct question is 
A baseball team has three different pitchers. Randy pitched 3 innings and allowed 2 runs, Felix pitched 5 innings and allowed 4 runs, and Johan pitched 7 innings and allowed 5 runs.
Which pitcher has the lowest number of runs allowed per inning?

we have that
we calculate the number of runs allowed  in 1 inning

if Randy pitched 3 innings and allowed ------------2 runs
  in 1 inning-----------------------------------> X
X=2/3----------> 0.67 runs

if Felix pitched 5 innings and allowed-------------> 4 runs
in 1 inning-----------------------------------> X
X=4/5----------> 0.80 runs

if Johan pitched 7 innings and allowed-------------> 5 runs
in 1 inning-----------------------------------> X
X=5/7----------> 0.71 runs

the answer is 
Randy has the lowest number of runs allowed per inning with 0.67