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The G20 Parliament Speakers Summit will be organized under the chairmanship of India from 12 to 14 October. It will be organized at India International Convention and Expo Center (Yashobhoomi) in New Delhi.
The average of 27 numbers is 20.The average of first 13 numbers is 15 and that of the last 13 numbers is 18. What will be the 27th number?
The average of 10 observations is 60. It was realized later that an observation was misread as 39 in place of 93. The correct average is:
[123 ÷ 8 ÷ 9] × 144 = ? + 12 × 5
