Official Solution: TetyanaRokobit
In the table, select for 'Apples picked per Hour by Garry' a possible number of apples picked per hour by Garry and select for 'Total apples picked by Barry' a possible number of total apples picked by Barry that would be jointly consistent with the given information. Make only two selections, one in each column.
No Yes
Once the number of apples picked by Barry is determined to be 30, it is known that Barry's rate of apple picking is 6 apples per hour. Since Barry's rate is half that of Garry's, it is known that Garry picks 12 apples per hour.
Corrected answers:
No: 453 Yes: 324