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

### Instruction:
Cara has 60 marbles in a bag. 20 of them are yellow, half as many are green, and the remaining marbles are equally divided between red and blue. If Cara picks a marble at random, what are the odds it's blue (expressed as a percentage)?

### Response:
 Kwanza, tafuta idadi ya mabulinge ya kijani kwa kugawanya idadi ya mabulinge ya manjano kwa nusu: mabulinge 20 / 2 = <<20/2=10>>10 mabulinge
Kisha tafuta jumla ya mabulinge yote ambayo ni nyekundu au buluu: mabulinge 60 - mabulinge 20 - mabulinge 10 = <<60-20-10=30>>30 mabulinge
Kisha gawanya idadi hii kwa nusu ili kupata mabulinge mangapi ni ya buluu: mabulinge 30 / 2 = <<30/2=15>>15 mabulinge
Hatimaye, gawanya idadi ya mabulinge ya buluu na idadi ya mabulinge yote kisha kuzidisha na 100% ili kuonyesha jibu kama asilimia: mabulinge 15 / mabulinge 60 * 100% = 25%