The standard time taken to complete a produt is 12 hours at 25 paise per hour. Time wages are allowed to workers taking more than the time allowed. But workers who complete the job in standard time or less receive a starlight piece work rate plus 10% bonus ie., 12 hours at Re.0.275. Calculate the wages earned by A,B,C, and D who complete the job in 15,12,10 and 8 hours respectively. What will be their effective hourly rate.