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

### Instruction:
A certain school bought 10 cases of bottled water for their athletes. There are 20 bottles in each case. Seventy bottles of water were used during the first game. After the second game, only 20 bottles of water were left. How many bottles of water were used during the second game?

### Response:
 Shule ilinunua masanduku 10 x chupa 20/kila sanduku = <<10*20=200>>200 za maji.
Kwa kuwa chupa 70 zilitumika katika mchezo wa kwanza, basi zilibaki chupa 200 - 70 = <<200-70=130>>130 za maji.
Na kwa kuwa zilibaki chupa 20 tu baada ya mchezo wa pili, basi chupa 130 - 20 = <<130-20=110>>110 za maji zilitumika wakati wa mchezo wa pili.