The average salary of all the associates in a team is Rs. 16000. The average sal

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Question

The average salary of all the associates in a team is Rs. 16000. The average salary of 7 senior associates is Rs. 24000 and the average salary of the rest is Rs. 12000. How many associates work in that team?

Options:

A . 24

B . 23

C . 22

D . 21

Answer: Option D
Answer: (d)Total members in the group = x Non–senior members = x – 7 According to the question, 16000x = 24000 × 7 + (x – 7) × 12000 ⇒ 16x = 24 × 7 + (x – 7) × 12 ⇒ 16x = 168 + 12x – 84 ⇒ 16x – 12x = 168 – 84 ⇒ 4x = 84 ⇒ x = $84/4$ = 21

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