Subject
Quantitative Aptitude
Topic
Average
The average salary in an industry having a staff of 16 engineers and 30 clerks is Rs. 750. The average salary of engineers is Rs. 1200. Find the average salary of clerks.
The average salary in an industry having a staff of 16 engineers and 30 clerks is Rs. 750. The average salary of engineers is Rs. 1200. Find the average salary of clerks.
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480খ)
500গ)
510ঘ)
515ঙ)
525Explanation
∵ The average salary of 16 engineers and 30 clerks is Rs. 750, 750 = Sum of salaries of all people/(16 + 30) ⇒ 750 = Sum of salaries of all people/46 ⇒ Sum of salaries of all people = 750 × 46 = 34500 Now, the average salary of engineers is Rs. 1200 ∴ 1200 = Sum of salaries of 16 engineers/16 ⇒ Sum of salary of all 16 engineers = 1200 × 16 = 19200 ∴ Sum of salaries of all clerks = Sum of salaries of all people – Sum of salaries of all engineers ⇒ Sum of salaries of all clerks = 34500 – 19200 ⇒ Sum of salaries of all clerks = 15300 Average salary of clerks = Sum of salaries of clerks/Number of clerks ∴ Average salary of clerks = 15300/30 ⇒ Average salary of clerks = Rs. 510Related questions
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