The sum of the first 50 positive even integers is 2,550. What is the sum of the even integers from 102 to 200, inclusive?
5,100
7,550
10,100
15,500
20,100
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the sum of the even integers from 102 to 200, inclusive指的是[102,200]偶数的和,不是第102个到200个偶数的和。不要被第一句first 50 positive even integers前50个带跑偏,注意看题!!
the sum of the even integers from 102 to 200, inclusive指的是[102,200]偶数的和,不是第102个到200个偶数的和。不要被第一句first 50 positive even integers前50个带跑偏,注意看题!!
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