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The average salary per head of all the employees of an institution is Rs.60. The average salary of 12 officers is Rs.400, the average salary per head of the rest is Rs.56.The total number of employees in the institution is:
1. 1035
2. 1050
3. 1032
4. 1030

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Correct Answer - Option 3 : 1032

Given:

The average salary per head of all the employees of an institution = 60 Rs.

The average salary of 12 officers = 400 Rs.

The average salary per head of the rest = 56 Rs.

Calculation:

Let the total number of employees = y

According to the given,

⇒ 12 × 400 + (y - 12) × 56 = 60y

⇒ 4800 + 56y - 672 = 60y

⇒ 4128 = 4y

⇒ y = 4128/4

⇒ y =1032

∴ The total number of employees in the institution is 1032   

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