The average salary per head of all workers of an institution is ₹ 60. The average salary per head of 12 officers is ₹ 400. The average salary per head of the rest is ₹ 56. Then, the total number of workers in the institutions?

1030
1032
1062
1060

Correct Answer: 1032

Explanation:

Let The total number of workers = N
According To the question,
60N = 12 x 400 + 56 (N - 12)
⇒ 60N - 56N = 4800 - 672
⇒ 4N = 4128
∴ N = 1032

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