Correct Answer - Option 2 : 552 km

**Given**

speed of car in 1st hour = 35 km/hr

**Formula Used **

S_{n} = n/2[2a + (n-1)d]

**Calculation:**

Series of a speed – 35, 37, 39, 41,

Sum of A.P. formula

S_{n} = n/2[2a + (n-1)d]

⇒(12/2)[2 × 35 + (12 – 1)2] = 6[70+22] = 552 km.

∴ total distance covered by car in 12 hours is 552 km