There are 1500/25 = 60 lengths of 25cm
A 15k marathon is just 15 kilometers, or roughly 9.3 miles.
With appropriate training, you may be able to run a 15K.
31 lengths.
The greatest common factor of 18k and 15k is 3k.
It means kilo which is 1000 and 15k is 15*1000 = 15000
1.5 kilometers=0.932056788 miles
15,000
70.4 lengths
4 lengths
Two lengths
15k simply means 15,000, 15Kbps would be 15,000 bits per second
Therefore 15k is 15 times 3 = 45