20
2499
30
When the digit is under 5 you round down but when it is 5 or more you round up. 25 would round to 30.
It is: 3*7*7*17 = 2499 or as 3*72*17 = 2499
It takes about 20 to 30 seconds for blood to make a complete round trip through the body.
2499
20 to 30 is a 50% increase.
round about 20-30 miles.
30
2000
it takes round about 20-30 mins
It's 20:30 WST (year-'round).