1.

If the sum of a few numbers is 450 and their mean is 50 and if anothernumber 100 is included, the mean would become(A) 55(C) 7540.(B) 60(D) 150

Answer»

Number of numbers whose mean is found out is 450/50 = 9. New mean = New total / New number of numbers= (450+100)/10= 550/10= 55. Please hit the like button if this helped you.



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