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The mean monthly salary of 10 pupil is Rs 2890. One more person whose monthly salary is Rs 3000 has also been taken into consideration. Find the mean monthly salary of all the 11 pupil.

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Since mean monthly salary of 10 pupil= Rs 2890
Rightarrow Total salary of 10 pupil = 10	imes 2890= Rs, 28900
On adding the salary of 11th person 
total salary of 11 pupil = Rs, 28900+Rs, 3000=Rs, 31900
	herefore Required average salary =frac3190011=Rs, 2900

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Deependra Verma

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