the mean of p,q,r,s,t is 28. if mean of p,r,t is 24.what is mean of q,r,s
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Mean=p+q+r+s+t/5
(5 observation)
28=p+q+r+s+t/5
140=p+q+r+s+t
Again
Mean =p+r+t/3
24=p+r+t/3
72=p+r+t
Therefore
72+q+s=140
q+s=68
And
The mean of q and s
=68/2
=34
(5 observation)
28=p+q+r+s+t/5
140=p+q+r+s+t
Again
Mean =p+r+t/3
24=p+r+t/3
72=p+r+t
Therefore
72+q+s=140
q+s=68
And
The mean of q and s
=68/2
=34
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