45% of 240 = 45% * 240 = 0.45 * 240 = 108
5 times with a remainder of 15
45
108
3/16 or 0.1875
(60 × 4) + 45 = 285 minutes Method: There are 60 minutes in 1 hour: 60 minutes x 4 hours equals 240 minutes. There are 45 minutes in 3 quarters of 1 hour. Therefore, add 240 and 45 which equals 285 minutes.
240
108/45 = x/100 > 45x = 10800 > x = 240
The Hayward S-240 sand filter requires roughly 300-350 pounds of silica sand for proper operation. It is important to consult the manufacturer's guidelines for your specific filter model to determine the exact amount of sand needed.
There are 35 240 in 8400
240 ÷ 16 = 15
240 ÷ 2 = 120