3m -> 1d -> 22b

9m-> 3d-> 22b

1m-> 3d-> 198b

2m-> 3d-> 99b

Sorry 

3m -> 1b -> 22d

9m-> 3b-> 22d

1m-> 3b-> 198d

2m-> 3b-> 99d

Think there are some typos relating to your “d”s and “b”s.

thanks

3 men → 22 days → 1 block

1 man → 66 days → 1 block (days required tripled as manpower cut by 1/3)

2 men → 33 days → 1 block (days required halved as manpower doubled)

2 men → 99 days → 3 blocks (days required tripled as no. of blocks tripled)

Thanks for the explanation