In an NGO the daily average wages of 20 illiterate employees is decreased from R

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Question
In an NGO the daily average wages of 20 illiterate employees is decreased from Rs.25 to Rs.10, thus the average salary of all the literate and illiterate employees is decreased Rs.10 per day. The No. of educated employees working in the NGO is :
Options
A. 15
B. 20
C. 10
D. Data Insufficient

Correct Answer

10

Explanation

Total employees = $\frac{(25 - 10) � 20}{10} = 30$

Hence number of educated employees = 30-20 = 10

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