math~~

Haha~~
The question actually are some problems there....
other than "increases by" should be replaced by "increased by",
and there is another question.....
60m (Do u mean meter??) cannot increased by 33 1/3%(because 60m is 60m ^o^)

u should ask the question in this way....
The length of is 60m and now increased by 33 1/3%.What is the new length now?

Answer:
New length = 60 * ( 1 + 33 1/3%)
= 60 * (1+ 1/3)
= 60 * 4/3
= 80 (m)

60 m increases by 33 1/3%

the answer is...?

the answeris:

60-33 1/3%
=60-100/3%
=60-3/1
=59 2/3 //

2006-11-25 19:58:36 補充：
The answer is 59 2/3 // (increases= -)