Can anyone give me websites for mathematical puzzles provided with the answers at the end? I just wanna practice myself and I wanna know the answers so I can review it. Thanks. The problems may be any kind of puzzles...but with answers either the next page or below it. No Sudokus please. Ty! Ü
2006-07-19 03:00:38 · 4 answers · asked by Jed Stephen 3 in Entertainment & Music ➔ Jokes & Riddles
http://www.braingle.com/ has some good logic problems and stuff.
2006-07-19 03:02:34 · answer #1 · answered by porky 4 · 0⤊ 0⤋
a million) only locate the equipment... pudding= x and Swiss rolls = y 5x + 4y = 40 5 2x + 6y = fifty one... as we could desire to understand the cost of y only multiply the 1st equation with the aid of -2 and the 2nd with the aid of 5 and upload the equations; -10x -8y = -ninety 10x +30y = 255 including the two equation we get 22y = a hundred sixty five then y = a hundred sixty five/22 = 7.5 ok! 2) x the age of the mother and y the age of the daughter. x = 3y x-6 = 5(y-6) ... as we could desire to understand the cost of y ... replace x = 3y interior the 2nd equation and get: 3y - 6 = 5(y-6) ==> 3y -6 = 5y - 30 ==> 2y = 24 ==> y = 12 ok!
2016-11-02 08:22:06 · answer #2 · answered by winstanley 4 · 0⤊ 0⤋
http://www.cut-the-knot.org/index.shtml
2006-07-19 03:05:06 · answer #3 · answered by Kacey 3 · 0⤊ 0⤋
try to go on math.com its very educational
2006-07-19 03:02:58 · answer #4 · answered by cassie 2 · 0⤊ 0⤋