
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
A school's social practice team visited 100 families and found that the appropriate concentration for laundry water is between 0.2% and 0.5%, meaning that it is suitable to have 200-500g of laundry detergent in 100kg of laundry water. This is because the surfactant activity is highest and the decontamination effect is best at this concentration. There is a laundry tub that can hold 15kg of laundry water (including clothes), and it is known that there are already 4kg of clothes in the tub. The required concentration of the laundry water is 0.4%. Two scoops of laundry detergent have already been added (1 scoop of laundry detergent is approximately 0.02kg). How much more kg of laundry detergent is needed, and how much more kg of water should be added to be appropriate?

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