| The average salary per head of all workers of an institution is Rs. 60. The average salary per head of 12 officers is Rs. |
| 400. The average salary per head of the rest is Rs. 56. Then, the total number of workers in the institution is |
A) 1030
B) 1032
C) 1062
D) 1060
Correct Answer: B
Solution :
| [b] Let the total number of workers = x According to the question, \[60\,x=12\times 400+56\,(x-12)\] \[\Rightarrow \] \[60x-56\,x=4800-672\] \[\Rightarrow \] \[4x=4128\] \[\Rightarrow \] \[x=1032\] |
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