the mean of 10 numbers is 20.if 5 is subtracted from every number.what will be the new mean?

** Let the sum of ten numbers be 'x'**

**Original Mean=20**

**According to question**

**Mean=Sum of numbers/Number of numbers**

**=> 20=x/10**

**=> 200=x**

**Now, Modified sum can be found as follows,**

**Given,**

**From every number 5 is subtracted,**

**Therefore**

**Modified Sum=200-[10*(-5)]**

**=> Modified Sum=200-50=150**

**Now, The Modified mean can be counted as follows,**

**Mean=Modified Sum/Total number of observations**

**=> Mean=150/10**

**=> Mean=15**

**So required Answer----> The modified mean is 15.**

**Cheers!**

**Keep Smiling!**

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