TS Police Constable Telugu Model Paper 8

Question : 58 of 199

Marks: +1, -0

x_{1}, x_{2},..... x_{10}

అంశముల సగటు 20 అయినప్పుడు

x_{1}+4, x_{1}+12.......... x_{10}+40

ల సగటు

Solution:

{x_{1}+4+x_{2}+8+x_{3}+12....... x_{10}+40}/{10}

{x_{1}+x_{2}+x_{3}+...... x_{10}}/{10}=20

x_{1}+x_{2}+x_{3}+.......+x_{10}=200

\ x_{1}+x_{2}+x_{3}+...... .+x_{10}+4+8+12+.....+40 ={200+220}/{10}=42

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