Question

Average salary of a group of unskilled workers is 10000 & that of a group of skilled worker is 15000.If the combined salary is 12000 then what is percentage of skilled workers

Answer 1

let x be unskilled
y be skilled
10000x+15000y=12000x+12000y
2000x=3000y
2x=3y
skilled workers is 2x/3
total workers x+2x/3=5x/3
percentage of skilled=2x/3 divided by 5x/3=40% ans

I Hope I will help you

Answer 2

Answer:

Step-by-step explanation:

1. no skilled person be x, then no of unskilled persons = 100-x,

now,

avg = total salary/ no of persons 10000(100-x)+15000x / 100 = 12000 1000000-10000x+15000x=1200000 5000x=200000. x=40 skilled workers=40%