Kerry and Kelly are twins. One of them lies on Mondays, Tuesdays, and Wednesdays and tells the truth on the pther days of the week. the other lies on Thursdays, Fridays, and Saturdays and tells the truth on the other days of the week. On which day of the week did they have this converstaion.
Kerry: I lie on Saturdays.
Kelly I will lie tomorrow.
Kerry: I lie on Sundays
2006-10-25 12:32:29 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
wednesday
2006-10-28 01:18:36 · answer #1 · answered by Anonymous · 0⤊ 0⤋
I think Wednesday. And I think Kerry lies Mon-Wed and Kelly lies Thurs-Sat.
If Kerry lies on Mondays, Tuesdays, and Wednesdays, then today would be her lying day. So saying I lie on Saturday would be a lie. Kelly tells the truth Mon-Wed, but lies Thurs-Sat, then for her to say I will lie tomorrow would be true, and today is one of the days for her to tell the truth. Today is one of Kerry's Lying days, and both of them tell the truth on Sundays, so for her to say I lie on Sundays is a lie...
2006-10-25 19:40:46 · answer #2 · answered by Asterisk_Love♥ 4 · 0⤊ 0⤋
We know that neither of them lies on Sundays. So Kerry is lying when she says "I lie on Sundays".
That means statement #1 is also a lie. As a result we know that Kerry lies on Monday, Tuesday and Wednesday (and Kelly lies on Thursday, Friday and Saturday).
Now since Kelly is currently telling the truth (they are always opposite, except Sunday), her statement is true.
She starts lying on Thursday, so today must be Wednesday.
2006-10-25 19:40:14 · answer #3 · answered by Puzzling 7 · 0⤊ 1⤋
Hi.
Kerry is lying in the last statement since no one lies on Sunday.
Monday Kelly lies
Tuesday Kelly lies
Wednesday Kelly lies****** This is it!
Thursday Kerry lies
Friday Kerry lies
Saturday Kerry lies
2006-10-25 19:57:26 · answer #4 · answered by Cirric 7 · 0⤊ 1⤋
Wednesday
Kerry was lying on Wednesday because she would tell the truth on Saturdays and Sundays.
Kelly was telling the truth since she will lie on Thursday.
2006-10-25 19:38:02 · answer #5 · answered by RR 2 · 1⤊ 0⤋
It is Wednesday! Duh! Since Kerry is lying right now, She must be the one who lies on M,Tu, and W. Which means if Kelly will lie tomorrow, it must be Wednesday. YA ME!
2006-10-25 19:39:37 · answer #6 · answered by black_star_47001 3 · 0⤊ 0⤋
friday
2006-10-28 00:02:58 · answer #7 · answered by ? 6 · 0⤊ 0⤋