In a company, the average salary of all the employees is ₹20,000. The average salary of group-A employees is ₹32,000 while the average salary of group-B employees is ₹18,000. What is the number of employees in group A if there are 72 employees in group B?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 I.e. 12.
Number of employees in Group A = A
(32000 × A) + (18000 × 72) = 20000(A + 72)
⇒ 32000A + 1296000 = 20000A + 1440000
⇒ 12000A = 144000
⇒ A = 144000/12000 = 12