Teaching Bihar D.El.Ed Mock Test Series 2024-25 Quantitative Aptitude Elementary Statistics

The mean of a set of 120 observations is 80. 10 is subtracted from each observation and each of the corresponding result is divided by 7. What is the mean of the new set?

1
\(7\frac{1}{{12}}\)
2
10
3
7
4
\(5\frac{5}{{6}}\)
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