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

### Instruction:
Mrs. Amaro has 80 roses in her garden. Three-fourths of her roses are red, one-fourth of the remaining are yellow, and the rest are white. How many of Mrs. Amaro's roses are either red or white?

### Response:
 Theluthi tatu ya 80 ni 60. Maua 60 ni nyekundu.
Kuna maua 80 - 60 = <<80-60=20>>20 yaliyobaki.
Robo moja ya 20 ni 5. Maua 5 ni manjano.
Kuna maua 20 - 5 = <<20-5=15>>15 yaliyobaki.
Maua 15 ni meupe.
Maua 15 + 60 = <<15+60=75>>75 ni nyekundu au meupe.