Q. 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?
Ans: 60
Sol:
Total employees in 2010 = 600
Type ‘P’ employees = 20/100 × 600 = 120
Type ‘Q’ employees = 25/100 × 600 = 150
Type ‘R’ employees = 25/100 × 600 = 150
Type ‘S’ employees = 25/100 × 600 = 150
Type ‘T’ employees = 5/100 × 600 = 30
Total employees at level P, Q and R = 120 + 150 + 150 = 420
Total employees in 2016 = 600 + 600 × 15/100 = 690
