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