In the context of accuracy of measurement and significant figures in expressing results of experiment, which of the following is/are correct : 

1. Out of the two measurement 50.14 cm and 0.00025 ampere, the first one has greater accuracy.
2. If one travels 478 km by rail and 397 m by road, the total distance travelled is 478 km.

Both are correct

Since for 50.14 cm, significant number = 4 and for 0.000025 significant numbers = 2