Answer: Option C
Explanation:
Total distance travelled in 12 hours = (35 + 37 + 39 + ---- upto 12 terms).
This is an A.P :
First term, a = 35,
Number of terms, n = 12,
Common difference, d = 2.
∴ Required distance = 12/2 [2 x 35 + (12-1) x 2]
= 6 (70 + 22 )
= 552 km
