Answer: At 42nd day, Sherman and Brad will go golfing together again.
Step-by-step explanation:
Since we have given that
Sherman goes golfing every 6th day ,
And,
Brad goes golfing every 7th day,
According to question, if Sherman and Brad both went golfing today,
We need to find the "Day at which they will go golfing together again" .
For this we need to find the first common multiple of 6 and 7 which is given by

Hence,
At 42nd day, Sherman and Brad will go golfing together again.