Answer:
195 min (3 hr 15 min)
Step-by-step explanation:
If a train covers a distance of 51 km in 45 min, then it covers
km per min. To determine how long it will take to cover 221 km, we divide:
![221/{1.1\bar3=195](https://img.qammunity.org/2020/formulas/social-studies/middle-school/nesuzgbnztl3kulnwmtup9txj15hxeu6wx.png)
Therefore, it will take the train 195 min (or 3 hr 15 min) to cover the distance.