for this, we use the given info plus a bit of multiplying and subtraction
part 1)
we know that she's 25 y/m
so 5 minutes simply means 25 × 5
![25 * 5 = 125 \: yards](https://img.qammunity.org/2019/formulas/mathematics/middle-school/5a0aom714gea59tnlmtbejd0limkhiw5qv.png)
now we simply subtract this from 1000 (the original distance)
![1000 - 125 = 875 \: yards](https://img.qammunity.org/2019/formulas/mathematics/middle-school/dtkhc2lp0o2vuuewzwnm4dhy60flujxf0m.png)
part 2)
the total time taken is even easier to find
all we have to do is divide 1000 by 25
![1000 / 25 = 40 \: minutes](https://img.qammunity.org/2019/formulas/mathematics/middle-school/2iau077bwzq0dddti8892haspf175wwidf.png)