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The average salary of all the workers in a workshop is Rs. 8,000. The average salary of 7 technicians is Rs. 12,000 and the average salary of the rest is Rs. 6,000. The total number of workers in the workshop is:
Answer & Solution
Correct Answer:
Option
B
Let the rest workers = x
Now, According to question,
(7 + x) × 8000 = 12000 × 7 + 6000x
56000 + 8000x = 84000 + 6000x
2000x = 28000
x = 14
So total number of worker
= 14 + 7
= 21
Now, According to question,
(7 + x) × 8000 = 12000 × 7 + 6000x
56000 + 8000x = 84000 + 6000x
2000x = 28000
x = 14
So total number of worker
= 14 + 7
= 21
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LoginN*8000=7*12000+(N-7)*6000
2000*N=84000-42000
N=21
{ 7*12000 + (21-7)*6000 } / 21 = 8000