Question
A firm hires employees at five different skill levels P, Q, R, S, T. The shares of employment at these skill levels of total employment in 2010 is given in the pie chart as shown. There were a total of 600 employees in 2010 and the total employment increased by 15% from 2010 to 2016. The total employment at skill levels P, Q and R remained unchanged during this period. If the employment at skill level S increased by 40% from 2010 to 2016, how many employees were there at skill level T in 2016?
Options :
30
35
60
72
Answer :
60
Solution :
In 2010:
Total number of employees = 600
Number of employees of skills
Q = R = S = 25% of 600 = 150
Number of employees of skill P = 20% of 600 = 120
Number of employees of skill T= 5% of 600 = 30
In 2016:
Total number of employees increased by 15%
Total number of employees = 1.15x 600 x=690
As there is no change in skill level of P, Q, and R
Number of employees of skill level P = 120
Number of employees of skill level Q = 150
Number of employees of skill level R=150
Number of employees at skill level S 40%increases 1.4 x 150 = 210
Number of employees at skill level T = 690 - (120 + 150 + 150 + 210) = 60
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