This math problem has got me stumped: 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?
Can you show me the way?
Mrs. Amaro has 80 x 3/4 = 60 red roses.
So, 80 - 60 = 20 roses are not red.
Then, 20 x 1/4 = 5 of those 20 non-red roses are yellow.
Hence, 20 - 5 = 15 roses are white.
Therefore, 60 + 15 = 75 roses are either red or white.