Okay. A boy swims 4.4 feet per second. There are 3,600 seconds in one hour. 4.4 * 3,600 is 15,840 feet in one hour. 15,840/5,280 is 3. The boy swims at 3 miles per hour. The fish swims at 12 mph. To find out how much faster the fish is than the boy in yards, we need to convert the measurements into yards and divide them per minute. Mind you, there are 1,760 yards in 1 mile. 12 * 1,760 is 21,120. 21,120/60 is 352. The fish swims 352 yards per minute. 3 * 1,760 is 5,280. 5,280/60 is 88. The boys swims 88 yards per minute. Now, we must subtract both numbers to see how much faster the fish swims. 352 - 88 = 264. There. The fish swims 264 yards faster per minute, than the boy.
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