Brain Teasers
How Old Are They?
A husband and wife have a combined age of 91. The husband is now twice as old as his wife was when he was as old as she is now. How old are they?
Answer
Husband = 52, Wife = 39.If we call the husband's age h, and the wife's w, we know:
h + w = 91 (a)
Their age difference is h - w. We know the husband is 2 * (how old his wife was when he was her age), so we need to take their age difference off his current wife's age, as follows:
2 * (w - (h - w)) = h
Simplifying this we get:
4w = 3h
plugging this back into (a) gives the required answer.
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Comments
Or you could just do it mentally and plug in numbers till it worked ~_~
Btw, it sounds like the wife needs to trade him in for a younger husband >.>
Btw, it sounds like the wife needs to trade him in for a younger husband >.>
thanx omega!
hey omega my dad is 12 years older than my mom. you got a problem.
Why are they accepting simple alegratic equations? This involves no teaser element at all, just straight algebra...
That could be in logic.
it was too easy
and ya it is just some siple algebra
and ya it is just some siple algebra
I think it is an excellent teaser. The skill is in being able to decipher the given conditions and represent the teaser algebraically. After that it is easy but I wonder whether those who say it is easy could actually do this?
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