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

### Instruction:
 Arabella ni mwanafunzi wa kucheza anayejifunza hatua tatu mpya msimu huu. Mwalimu wake anamwambia atumie dakika thelathini kujifunza hatua ya kwanza. Hatua ya pili anaijua nusu ya muda. Hatua ya tatu ni ngumu zaidi, hivyo inamchukua muda kama wa hatua zote mbili nyingine kujifunza. Arabella alitumia muda gani kujifunza hatua hizo tatu?


### Response:
 Arabella alitumia dakika 30 / 2 = <<30/2=15>>15 kujifunza hatua ya pili.
Alitumia dakika 30 + 15 = <<30+15=45>>45 kujifunza hatua ya tatu.
Hivyo, Arabella alitumia dakika 30 + 15 + 45 = <<30+15+45=90>>90 kujifunza hatua zote tatu.