The number of coniferous trees in the park is as deciduous as 1: 4. How many percent of the trees in the park are deciduous?
According to the condition of the problem, the number of coniferous trees in the park is 1: 4 as deciduous trees. This means that there are 1 + 4 = 5 parts of the trees in the park. These 5 parts make up all 100% of the trees in the park, so one part equals 100: 5 = 20%. Deciduous trees make up 4 parts, which in percentage will be 4 * 20 = 80%.
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