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

### Instruction:
Cleo and Ignacio placed 30 of their marbles in a jar on a Monday. They took 3/5 of the marbles from the jar the next day and divided them equally. On the third day, Cleo took 1/2 of the marbles remaining in the jars. How many marbles did Cleo have on the third day?

### Response:
 Mabulinge 30 * 3/5 = <<30*3/5=18>>18 yalichukuliwa kutoka kwenye kopo siku ya kwanza.
Walipogawana mabulinge, kila mmoja alipata mabulinge 18 / 2 watu = <<18/2=9>>9 kwa kila mtu.
Kulikuwa na mabulinge 30 - 18 = <<30-18=12>>12 yaliyobaki kwenye kopo.
12 mabulinge * 1/2 = <<12*1/2=6>>6 mabulinge yalichukuliwa na Cleo siku ya tatu.
Jumla, alikuwa na mabulinge 6 + 9 = <<6+9=15>>15 siku ya tatu.