A car started running at a speed of 36 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 10 hours of the journey.
Choose the correct choice
A) 45 km  B) 76 km  C) 25 km  D) 15 km  E) 30 km
45 km   45 km   The total distance covered by the car in the first 10 hours = 36 + 38 + 40 + 42 + 44 + 46 + 48+ 50 + 52 + 54= sum of 10 terms in 45 kmP whose first term is 36 and last term is 54 = 10/2 [36 + 54] = 450 km.
<result>A</result>
A car started running at a speed of 36 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 10 hours of the journey.