方方有48元,用去12元,再用去20元,共用去原有款項的百分之幾?
2007-01-10 14:00:08 · 4 個解答 · 發問者 ? 6 in 科學 ➔ 數學
方方共用了32元(12元+20元)，計算公式如下﹕
已用了的金額 / 原有金額 x 100%
=32 / 48 x 100%
=66.67% (小數點後2位)
2007-01-10 14:09:53 · answer #1 · answered by Lau Mandy Man Yee 3 · 0⤊ 0⤋
66.66......%
2007-01-10 14:06:29 · answer #2 · answered by 邁陂塘 2 · 0⤊ 0⤋
12+20
----------x100%
48
= 32
------x100%
48
=66 2/3%
共用去原有款項的66 2/3%
2007-01-10 14:06:08 · answer #3 · answered by sr 6 · 0⤊ 0⤋
48-12-20=16
(16/48)X100=33.33%
2007-01-10 14:04:19 · answer #4 · answered by ? 7 · 0⤊ 0⤋