0000:00:00:00:00Start10Number 10ExplanationNina runs at a constant speed of 5 km/h5 \text{ km/h}5 km/h. And she walks at a speed of 1 km/h1 \text{ km/h}1 km/h. If Nina travels 3 km3 \text{ km}3 km by running for half of the total travel time and walking for the rest, what is the total time taken by Nina?151515 minutes303030 minutes454545 minutes606060 minutes757575 minutes
10Number 10ExplanationNina runs at a constant speed of 5 km/h5 \text{ km/h}5 km/h. And she walks at a speed of 1 km/h1 \text{ km/h}1 km/h. If Nina travels 3 km3 \text{ km}3 km by running for half of the total travel time and walking for the rest, what is the total time taken by Nina?151515 minutes303030 minutes454545 minutes606060 minutes757575 minutes