Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
A tank can hold 100 liters of water. At the beginning of the rainy season, the tank is 2/5 filled with water. On the first day of the rainy season, the tank collected 15 liters of water. On the second day, 5 liters more water was collected than on the first day. On the third day, the tank was already filled. How many liters of water were collected on the third day?

### Response:
 Mwanzoni mwa msimu wa mvua, tangi lina lita 100 x 2/5 = <<100*2/5=40>>40 za maji.
Siku ya kwanza ya msimu wa mvua, tangi lina lita 40 + 15 = <<40+15=55>>55 za maji.
Siku ya pili, lita 15 + 5 = <<15+5=20>>20 za maji zilikusanywa.
Hivyo, tangi lina lita 55 + 20 = <<55+20=75>>75 za maji siku ya pili.
Hivyo basi, lita 100 - 75 = <<100-75=25>>25 za maji zilikusanywa siku ya tatu.