In a marathon of 5.75 km, first break was taken after running 2.8 km and second break after another 1.3 km. Find the distance left to finish the marathon.
1.65 km
Total distance covered before second halt = (2.8 + 1.3) km = 4.1 km
Therefore, distance left = (5.75 - 4.10) km = 1.65 km