Question

The average monthly salary of all the employees in an industry is Rs.12,000. The average salary of male employees is Rs.15,000 and that of female employees is Rs.8,000. What is the ratio of male employees to female employees ?

• A. 4 : 3
• B. 2 : 5
• C. 3 : 4
• D. 5 : 2

Answer 1

Answer:

A. 4 : 3

Male employees = x Female employees = y (x + y) 12000 = x × 15000 + y × 8000 ⇒ (x + y) × 12 = 15x + 8y ⇒ 12x + 12y = 15x + 8y ⇒ 3x = 4y x : y = 4 : 3