幫我計計．．　唔該你

y(1+60%)
=y(1+60/100)
=y(1+0.6)
=y1.6
=1.6y
so答案係1.6y

y(1+60%)
=y乘1.6
=1.6y

y(1+60%)
=y(1.6)
=1.6y
所以
=1.6y-y除y乘100%
0.06y除y乘100%
=6

2008-04-23 16:22:13 補充：
是=6%

ｙ（１＋６０％）
= y ( 1 + 60/100)
= y ( 1 + 0.6)
= 1.6y