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

### Instruction:
 Gerald alikuwa na magari ya kuchezea 20. Alitoa 1/4 ya magari yake kwa kituo cha watoto yatima. Gerald anabakiwa na magari mangapi?


### Response:
 Gerald alitoa 20 x 1/4 = <<20*1/4=5>>5 ya magari yake.
Hivyo, sasa anabakiwa na magari 20 - 5 = <<20-5=15>>15.