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UPSC Civil ServicesPrelims2023General Studies Paper II (CSAT)
Question
QQ29. What is the sum of all digits which appear in all the integers from 10 to 100 ?
Options
- A 855
- B 856
- C 910
- D 911
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Correct Answer
B 856
Model Answer
Answer: option B, as per UPSC's final answer key (Series A).