The average salary, per head, of all the workers 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 workers in the institution is
Options:
A . 1032
B . 1020
C . 1035
D . 1030
Answer: Option A Answer: (a)Number of other workers except officers = x ∴ 12 × 400 + x × 56 = (x + 12) × 60 ⇒ 4800 + 56x = 60x + 720 ⇒ 60x – 56x = 4800 – 720 ⇒ 4x = 4080 ⇒ x = $4080/4$ = 1020 ∴ Total number of workers = 1020 + 12 = 1032
Submit Comment/FeedBack