Answer:
Option A
Explanation:
Total distance travelled in 12 hours = (35 + 37 + 39 + .....upto 12 terms).
This is an A.P. with first term, $a = 35$, number of terms, $n = 12$, common difference, $d = 2$.
Required distance $=\frac{12}{5}\left[2\times 35+(12-1)\times 2\right]$ $=6(70 + 22)$ = 552 km.