呢題數點做?"
ADD 1 to the double of a number and the result is 41.find the number.
A.11
B.20
C.21
D.40
呢題數點做?"
2007-08-07 1:00 am
回答 (8)
2007-08-07 1:09 am
let the number be x,
2x+1=41
2x=40
x=20
so, the answer is B
2x+1=41
2x=40
x=20
so, the answer is B
2007-08-07 1:06 am
ADD 1 to the double of a number and the result is 41.find the number.
D.40
2007-08-06 17:15:44 補充：
我講錯係: 條問題係話把1個數字乘2再加1答案係41 那果個數字係咩？即係x*2 1=41 x=(41-1)/2 x=20
D.40
2007-08-06 17:15:44 補充：
我講錯係: 條問題係話把1個數字乘2再加1答案係41 那果個數字係咩？即係x*2 1=41 x=(41-1)/2 x=20
參考: 我
2007-08-07 1:05 am
中文: 把1個數字乘2再加1 答案係41 那個數字是..
B.20
B.20
2007-08-07 1:04 am
B.20...................
2007-08-07 1:04 am
ADD 1 to the double of a number and the result is 41.find the number.
係A.11
係A.11
2007-08-07 1:04 am
2*?+1 = 41
2*? = 41-1
2*? = 40
? = 40/2
?= 20
Answer is B
2*? = 41-1
2*? = 40
? = 40/2
?= 20
Answer is B
收錄日期: 2021-04-13 00:57:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070806000051KK03487