She walks 1km 875m every single day and this is only one way to go school and back to home is also same
We have to convert 1km 875m into meter so 1875m. To maintain the balance we did it
Six day she goes home to school and school to home will (1875*12) meter **here 12 because she walk home to school and school to home
= 22500meter
We convert back into km and meter
So 22km and 500m
So she walked 22kilometer 500meter
