Question

(u) ax + by (D) b(x + y) If there are n numbers of which one is and all the others are 1's, then the arithmetic mean of these numbers is less than 1 by (A) n

JEE/Engineering Exams

Maths

Solution

4.0 (1 ratings)

[ begin{array}{c} text { no } g(1)=n-1 text { one } m=frac{1-frac{1}{n}}{n+frac{n-1+n-1}{n}}=frac{n-1}{n} frac{n^{2}-n+n-1}{n^{2}}=frac{n^{2}-1}{n^{2}}-frac{1-1}{n^{2}} end{array} ] . It in 180 than 1 by ( 1 / n^{2} ). Crive rativg. Jet valuable.