
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
小明爸爸装修要粉刷断居室的墙面,在家装商场选购某品牌的乳胶漆:

规格（升/桶) | 价格（元/桶)
--- | ---
大桶装 | 18 | 225
小桶装 | 5 | 90

小明爸估算家里的粉刷面积,若买"大桶装",则需若干桶但还差2升；若买"小桶装",则需多买11桶但会剩余1升,

（1）小明爸预计墙面的粉刷需要乳胶漆多少升?

（2）喜迎新年,商场进行促销:满1000减120元现金,并且该品牌商家对"小桶装"乳胶漆有"买4送1"的促销活动,小明爸打算购买"小桶装",比促销前节省多少钱?

（3）在（2）的条件下,商家在这次乳胶漆的销售买卖中,仍可盈利25%,则小桶装乳胶漆每桶的成本是多少元?

Present the answer in LaTex format: \boxed{Your answer}
user