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UPPSC Prelims 2018CSATQ. 81 of 230
Q. 811 markMedium
UPPSC Prelims 2018·CSAT
If the mean of x₁ and x₂ is 7.5 and the mean of x₁, x₂, x₃ is 8, then the value of x₃ is
(a)9
(b)8
(c)7.5
(d)6
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If the mean of x₁ and x₂ is 7.5 and the mean of x₁, x₂, x₃ is 8, then the value of x₃ is