John lives twice as far from school as Mona does.The total distance that John and Mona travel everyday is 8.7 kilometers.How far from school does John live?

Let the distance Mona lives from school be ( x ) kilometers. Then, John lives ( 2x ) kilometers from school. The total distance they travel is ( x + 2x = 3x ), which equals 8.7 kilometers. Solving for ( x ), we find ( 3x = 8.7 ) so ( x = 2.9 ) kilometers. Therefore, John lives ( 2x = 5.8 ) kilometers from school.