A car started running at a speed of 30 km/hr and the speed of the car was increased by 2 km/hr at the end of every hour. Find the total distance covered by the car in the first 11 hours of the journey.	Choose the most appropriate option
A) 342 km
B) 352 km
C) 642 km
D) 440 km
E) 382 km
The total distance covered by the car in the first 11 hours = 30 + 32 + 34 + 36 + 38 + 40 + 42 + 44 + 46 +48 + 50 = sum of 11 terms in AP whose first term is 30 and last term is 50 = 11/2 [30 + 50] = 440 km.   ANSWER:440 km
<result>D</result>
A car started running at a speed of 30 km/hr and the speed of the car was increased by 2 km/hr at the end of every hour. Find the total distance covered by the car in the first 11 hours of the journey.