The mean average of 150 labourers working in a factory running three shifts of 60, 40, and 50 labourers is RSVP 114.00 . The mean wages of 60 labourers working in the first shift is RS 121.50 and that of 40 labourers working in the second shift is RS 107.75.find the mean wage of labourers working in the third shift.
