The average monthly salary of 10 workers of a company is rs. 1445. One more number whose monthly salary is rs. 1500 has joined the group. The average monthly salary of 11 workers is
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average = sum of observation \ number of observation
from given data
1445 = sum of observation \ 10
14450 = sum of observation
One person whose salary is rs. 1500 joins the group
average = sum of observation \ number of observation
average = 14450 +1500 \11
average = 15950 \11
average = 1450
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