The average salary of employees in a factory is Rs. 2200. All employees are divided in two grades A and B having an average of Rs. 2450 and Rs. 1950 respectively. If grade A has 10 employees then how many employees have grade B_____? April 21, 2025June 27, 2019 A.12 B.16 C.20 D.24 E.none Show AnswerAnswer=Option E