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呃真的是?中???~
?注意她是??在爸爸在哪彦.......
答案真的?我目瞪口呆@@
考考您~~
已知:
??比小孩大21?,
六年之後??的年?是小孩年?的 5 倍。
??:爸爸?在在哪彦?
Given:
Mother is 21 years older than her child
After six years, mother will be five times older than her child
Question: Where is the father?
先不要看下面的解答,好好想一想,呃是?中??的?西~
--Try to work out the answer before looking--
?考解答:
韵? M ?,小孩 C ?
M = C + 21
M+6 = (C+6)*5
解?立: C = -3/4
也就是真小孩子在九?月之後?出生
所以,爸爸?在在??上面!
Sloution:
Let M be mother's age, and C be the child's age
M = C + 21
M+6 = (C+6)*5
which: C= -3/4
therefore child will be given birth after nine months
thus, father is now on top of the mother!
?注意她是??在爸爸在哪彦.......
答案真的?我目瞪口呆@@
考考您~~
已知:
??比小孩大21?,
六年之後??的年?是小孩年?的 5 倍。
??:爸爸?在在哪彦?
Given:
Mother is 21 years older than her child
After six years, mother will be five times older than her child
Question: Where is the father?
先不要看下面的解答,好好想一想,呃是?中??的?西~
--Try to work out the answer before looking--
?考解答:
韵? M ?,小孩 C ?
M = C + 21
M+6 = (C+6)*5
解?立: C = -3/4
也就是真小孩子在九?月之後?出生
所以,爸爸?在在??上面!
Sloution:
Let M be mother's age, and C be the child's age
M = C + 21
M+6 = (C+6)*5
which: C= -3/4
therefore child will be given birth after nine months
thus, father is now on top of the mother!