The mean of 20 number is 15 if a number is added to the data, the mean becomes 1 more than that of before
and find the number which has been added
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3
Step-by-step explanation:
20×18 i.e.360 When 2 is added to each no.,we get 360 +(20×2) =400 Now,new ... When one number was added to these numbers, the average became 60. ... If the mean is 18 then the total sum of the numbers
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2
Answer:
It's 36
Step-by-step explanation:
Hope it will help....
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