Less workers = more hours
OR the answer might be worded as
More workers = less hours
Number 1 The population of bacteria triples every day.
This can't work because if there are 60 cars that means there are 240 car wheels and then 25 bikes means 50 bike wheels for a total of 290 wheels, if there was 1 more car then it would be 86 cars and motorcycles with 294 wheels or 2 more bikes would mean 87 cars and motorcycles with 294 wheels
Step 1: Add together the known angles.
Step 2: Subtract the sum from 180°.