The average weight of 6 students is 45 kg when 1 more students is include average reduced by 1 kg. Find the weight of new student? find mean
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the total wt of 6 students =6x45 kg=270kg
let wt of new student = x kg
given avg is reduced by one when new student is added I.e., 45-1=44 is new mean
there fore
(270+x )/7=44
then 270+x =308
then x= -38 ( wt can't be show in -38)
therefore wt of new student is 38 kg
let wt of new student = x kg
given avg is reduced by one when new student is added I.e., 45-1=44 is new mean
there fore
(270+x )/7=44
then 270+x =308
then x= -38 ( wt can't be show in -38)
therefore wt of new student is 38 kg
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