Aditch contains 10 centimeters of water. rainwater accumulates in the ditch as follows: 10 centimeters of water by the end of the 1st second, 15 centimeters by the end of the 2nd second, 20 centimeters by the end of the 3rd second, and so on. assuming that the ditch has sufficient capacity for storage, how many centimeters of water will it have after 10 seconds? a. 55 c. 75 b. 65 d. 110