RRB Junior Engineer Stage 1 Model Papers 5

Question : 16 of 100

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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

Validate

Solution:

Let total number of workers be n
total salary of all workers = 8000 n
total salary of 7 technicians

= 7 × 12000 = 84,000

total salary of remaining workers

= (n – 7) × 6000

84000 + (n – 7) × 6000 = 8000 n

84 + 6n – 42 = 8n

42 = 2n

n = 21

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