The average salary of male employees in a factory was Rs. 520 and that of females was Rs. 420. If mean salary of all employees is Rs. 500, the % of male employees is?; (A)20(B)40(C)60(D)80
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let no. of males=x
no. of females = y
520x+420y/x+y=500
20x=80y
x=4y
percentage of females=(y/x+y)×100=20
percentage of males=80
pls let me know right or wrong
no. of females = y
520x+420y/x+y=500
20x=80y
x=4y
percentage of females=(y/x+y)×100=20
percentage of males=80
pls let me know right or wrong
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