Posted by urgent help needed pls on Thursday, January 19, 2012 at 11:00am.
A tank was filled with 20L of water. However, there was a hole and 2/3L was leaked out every minute.How long did it take for the tank to become empty?

maths  amper, Thursday, January 19, 2012 at 11:05am
FIRST,look for the unit
LLitre
leak?L per minuteL m^1
that mean
L/ L m^1
=1/ m^1
=m
therefore,
ans:
20/(2/3)
=30minutes.

maths  urgent help needed pls, Thursday, January 19, 2012 at 11:50am
yup, that's what i got, thanks for verifying
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