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

### Instruction:
Kalani has twenty candles in her bedroom, twice the number of candles in the living room. Donovan, her brother, brings in 20 more candles he bought from the candle shop. What's the total number of candles in the house?

### Response:
 Ikiwa idadi ya mishumaa katika chumba ni mara mbili ya idadi katika sebule, kuna mishumaa kumi katika sebule.
Donovan anapoleta mishumaa ishirini zaidi, idadi jumla ya mishumaa inakuwa 10+20+20 = 50