The minutes remaining till the end of the month = 500 - 310 = 190 minutes now to split these minutes equally, we will divide them by 7 days of week daily usage = 190/7 = 27.14 minutes since we can not talk for 0.14 minutes, therefore,to equally split the remaining minutes, you should speak 27 minutes per day with one extra minutes remaining to be used on the day you choose