CAT Question 158
If the sum of the first 11 terms of an arithmetic progression equals that of the first 19 terms, then what is the sum of the first 30 terms?
1. 0
2. -1
3. 1
4. Not unique
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If the sum of the first 11 terms of an arithmetic progression equals that of the first 19 terms, then what is the sum of the first 30 terms?
1. 0
2. -1
3. 1
4. Not unique