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Rohini

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· 1 Months ago

rohini (Question: 117300.0 )

how 5:7 ratio comes

Question:
The average salary is being paid to all its employees by the Xyz Corporation are Rs.15,500. The average salary of the senior employees is Rs.18000 per month and the average salary of the junior employees is Rs.12,000 per month, If there are only two levels of employees viz junior and senior level, then what fraction of the total employees is the junior level employees are:
Options:
A) \(\cfrac{7}{10}\)
B) \(\cfrac{5}{12}\)
C) \(\cfrac{5}{10}\)
D) \(\cfrac{5}{7}\)
E) None of these
Solution:
By the method of allegation


Therefore the ratio of number of Jun. level employee to the senior level employee = 5: 7

Hence the required fraction = \(\cfrac{5}{(5+7)}=\cfrac{5}{12}\)

Knowledge Expert

· commented

· 1 Months ago

the ratio of number of Jun. level employee to the senior level employee = (18000-15500)/(15500-12000) =2500/3500 = 5/7 = 5:7
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