Problem 1158

Daily Math Challenge - June 13, 2024



Group the consecutive counting numbers as follows: (1), (2, 3), (4, 5, 6), (7, 8, 9, 10), . .  Notice that there is one number in the first group, two numbers in the second group, three in the third, etc.  What is the sum of the numbers in the 50th group?

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