Each year for 4 years, a farmer increased the number of trees in a certain orchard by 14 of the number of trees in the orchard the preceding year. If all of the trees thrived and there were 6,250 trees in the orchard at the end of the 4-year period, how many trees were in the orchard at the beginning of the 4-year period?

Each year for 4 years, a farmer increased the number of trees in a certain orchard by

\frac{1}{4}

of the number of trees in the orchard the preceding year. If all of the trees thrived and there were 6,250 trees in the orchard at the end of the 4-year period, how many trees were in the orchard at the beginning of the 4-year period?

A、1,250
B、1,563
C、2,250
D、2,560
E、2,752

答案：D

专业教师答疑

问题：计算过程没有看懂，麻烦may老师再讲一遍查看答疑

问题：may老师这道题我认为只需要乘以5/4的三次方因为我以为第一年为x 第二年5/4x 第三年5/4^2x 第四年5/4^3x 我的理解哪里出了问题呢？？为什么是四次方呢查看答疑

问题：请问may老师，有什么方法快速算1.25^4吗？查看答疑

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