The average salary of all workers in a restaurant is Rs. 8000. The average salary of the 7 cooks is Rs. 12000 and the average salary of rest workers is Rs. 6000. How many workers are there working in that restaurant?

Answer: 21

Let the total number of workers be x. Then,

8000x = (12000 * 7) + 6000(x – 7)

=> $x = \frac{42000}{2000}$

$x = \frac{42000}{2000}$

Answer = 21

ND29-5-2023

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