" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1/8 + 1/s' = 1/10
1/s' = 1/10 - 1/8
1/s' = 4/40 - 5/40
1/s' = -1/40
s' = -40 cm