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

### Instruction:
Daryl is loading crates at a warehouse and wants to make sure that they are not overloaded. Each crate can weigh up to 20kg and he has 15 crates he can fill. He has 4 bags of nails to load, each of which weighs 5kg; he has 12 bags of hammers, each of which weighs 5 kg; he also has 10 bags of wooden planks, each of which weighs 30kg and can be sub-divided. He realizes that he has too much to load and will have to leave some items out of the crates to meet the weight limit. In kg, how much is Daryl going to have to leave out of the crates?

### Response:
 Misumari zina uzito wa jumla ya mifuko 4 * kilogramu 5 kwa kila mfuko = <<4*5=20>>20kg.
Nyundo zina uzito wa jumla ya mifuko 12 * kilogramu 5 kwa kila mfuko = <<12*5=60>>60kg.
Mbao zina uzito wa jumla ya mifuko 10 * kilogramu 30 kwa kila mfuko = <<10*30=300>>300kg.
Hivyo, jumla ya uzito wa vitu vyote ni kilogramu 20 + kilogramu 60 + kilogramu 300 = <<20+60+300=380>>380kg.
Hii ni uzito mwingi sana wa kupakia kwenye masanduku, kwani masanduku yanaweza kubeba jumla ya masanduku 15 * kilogramu 20 kwa kila sanduku = <<15*20=300>>300kg.
Kwa hiyo, Daryl atalazimika kuacha jumla ya kilogramu 380 za vitu - kilogramu 300 kikomo cha uzito = <<380-300=80>>80kg ya vitu.