Final answer:
All 6 cutting machines can cut 210 parts in 1 minute.
Step-by-step explanation:
Total machines = 6
Parts cut by machines = 105
Time taken = 3 minutes
To find out how many parts all 6 cutting machines can cut in 1 minute, we need to calculate the total parts cut by one cutting machine in 1 minute and then multiply it by 6.
Each cutting machine cuts 105 parts every 3 minutes.
This means it cuts 105/3 = 35 parts per minute.
So, all 6 cutting machines can cut 35 x 6 = 210 parts in 1 minute.