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Zorluk: KolayFractions, Decimals, and Percentages

A school garden has flowers of three colors: red, yellow, and white. Red flowers make up 25\frac{2}{5} of the garden, yellow flowers make up 14\frac{1}{4} of the garden, and the remaining flowers are white. What percentage of the flowers in the garden are white?

  1. A
    33%
  2. 35%Cevap
  3. C
    54%
  4. D
    65%
  5. E
    67%

Cevap

The percentage of white flowers in the garden is 35%.
To find the percentage of white flowers, we convert the fractional parts of the other flowers to percentages: red flowers make up 25=40%\frac{2}{5} = 40\% of the garden, and yellow flowers make up 14=25%\frac{1}{4} = 25\% of the garden. Adding these together, red and yellow flowers account for 40%+25%=65%40\% + 25\% = 65\% of the garden. Subtracting this from the total garden (100%100\%) yields 100%65%=35%100\% - 65\% = 35\% for the white flowers.

Adım Adım Çözüm

1
Convert the fraction of red flowers to a percentage.
25=0.40=40%\frac{2}{5} = 0.40 = 40\%
Converting all components to percentages allows for direct addition and subtraction.
2
Convert the fraction of yellow flowers to a percentage.
14=0.25=25%\frac{1}{4} = 0.25 = 25\%
This puts the yellow flowers in the same percentage unit as the red flowers.
3
Add the percentages of red and yellow flowers to find their combined share of the garden.
40%+25%=65%40\% + 25\% = 65\%
This gives the total portion of the garden occupied by non-white flowers.
4
Subtract the combined share from the total garden percentage (100%) to find the percentage of white flowers.
100%65%=35%100\% - 65\% = 35\%
Since the entire garden represents 100%, subtracting the non-white portion yields the remaining white portion.

Anahtar Kavram

Converting fractions to percentages to solve part-to-whole word problems.
Tahmini Süre:45s
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