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

### Instruction:
Arman is six times older than his sister. His sister is 2 years old four years ago. In how many years will Arman's age be 40?

### Response:
 Dada yake Arman ana miaka 4 + 2 = <<4+2=6>>6 sasa.
Hivyo, Arman ana miaka 6 x 6 = <<6*6=36>>36.
Hivyo, umri wa Arman utakuwa miaka 40 baada ya miaka 40 - 36 = <<40-36=4>>4.