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The Ministry of Defence signed an MoU with BEML Limited, BEL, and MIDHANI for the indigenous development of Advanced Fuelling & Control System for Engines for heavy-duty applications.
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
