I need help with a riddle hoping someone can help
Mandy is 25 years older than Sandy
Sandy is 25 yrs younger than Mandy
Mandy's age is even
Sandy's age is odd
Together the sum of their ages is 63 how old is each sister?
anyone?
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I need help with a riddle hoping someone can help
Mandy is 25 years older than Sandy
Sandy is 25 yrs younger than Mandy
Mandy's age is even
Sandy's age is odd
Together the sum of their ages is 63 how old is each sister?
anyone?
aren't these two statements redundant?Quote:
Originally Posted by jak
this isn't a riddle.Quote:
Mandy's age is even
Sandy's age is odd
Together the sum of their ages is 63 how old is each sister?
anyone?
since Sandy's age is odd, we can write it as:for
...(i used the natural numbers instead of the integers since negative ages make no sense, but whatever).
since Mandy is 25 yrs older than Sandy, Mandy's age is given by:
The sum of their ages is 63, thus we have:
now solve forand you will be able to find their ages
Hello, jak!
What a silly problem!
Where did it come from?
Quote:
Mandy is 25 years older than Sandy.
Sandy is 25 yrs younger than Mandy. . . . . well, duh!
Mandy's age is even. . . . . Not relevant
Sandy's age is odd. . . . . . Who cares?
Together the sum of their ages is 63. . . . . Finally, something useful!
How old is each sister?
They're sisters? .Boy, that's really important!
(That's quite an age spread for siblings, isn't it?)
Let= Sandy's age.
Then= Mandy's age.
"The sum of their ages is 63": .
Indeed! I guess the way the question was phrased is supposed to be the riddle, and i fell for it, working too hard. oh well, it happensQuote:
Originally Posted by Soroban
sandy is 44 while mandy is 19
sorry for wasting everyones time thanks for the response. After I posted it, I realized duh as many had suggested....
anyway thanks for the help
i think that mandy is 50 and sandy is 25 but i might be wrongQuote:
Originally Posted by jak
50 + 25 = 75. we are told the sum of their ages is 63Quote:
Originally Posted by ivananeedshelponmath2