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The average salary of all the workers in a workshop is ₹ 8,000. The average salary of 7 technicians is ₹ 12,000 and the average salary of the rest is ₹ 6,000. The total number of workers in the workshop is
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- 20
- 21
- 22
- 23
- 20
Correct Option: B
Let Total workers = p
According to question ,
∴ 7 × 12000 + (p – 7) × 6000 = 8000p
⇒ 84000 + 6000p – 42000 = 8000p
∴ 8000p – 6000p = 42000
⇒ 2000p = 42000
| ⇒ p = | = 21 | |
| 2000 |
