If the mean of 20 numbers is 17 , if 3 added to every number, what is new mean Share with your friends Share 0 Rupesh Kumar answered this Dear student, Regards 0 View Full Answer Fatima Sirat answered this Mean of 20 numbers = 17 Number added to one number = 3 Number added to twenty numbers = 20*3=60 Mean of the numbers added to twenty numbers = 60/20 = 3 The new mean = 17 + 3 = 21 0