How Old is ____? #2
Math brain teasers require computations to solve.
Jane is 34. Kevin is 11. Lucy is half as old as Jane but three years younger than Mike. Mike is 3 times as old as Greg. How old is Greg?
HintSome useless information might be added. Use a decimal if needed.
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Comments
markmonnin   
Nov 25, 2008
| Fun and easy  . |
adam213
Nov 25, 2008
| Questions like this always turn up on standardized tests. It's good to know how to tackle them.  |
W1nd
Nov 25, 2008
| aw i was so close, i got 6.6666... |
Malika123  
Nov 27, 2008
| Me too, I got 6.66666666666. |
Zinger 
Nov 28, 2008
| yea that wasnt too bad i got 6.6666666666 |
stil
Nov 28, 2008
| Your casual flip-flop has a foul odor. Even age ambitious toddlers do not claim decimal ages. At most they count quarter years after their parents quit counting months.
Moreover, six-years-and-eight-months is an exact answer to squirrelled question. |
pating
Dec 03, 2008
| If Greg is Six-years-and-eight-months old, Mike would be "exactly" 20 years old, Lucy is "exactly" 17 years old, and Jane "exactly" 34 years old. Does that mean Jane, Lucy and Mike share the same birthday, and today is their birthday?
Just wondering...  |
mrey
Jan 31, 2009
| just want to know how to type the answer? liked the teaser  |
Quickq
Feb 21, 2009
| How does giving us kevins age help, and why is the answer 6.7?  6.666666 is the right answer. And if you think that 6.666666 is wrong because it isn't right down to the last nanosecond, what's wrong with 6 2/3?
2/10 for that teaser. |
jae113
Mar 05, 2009
| Can someone please explain how this is done?
Here is what I did, but I can't get the right answer:
J=34
K=11
L= 34/2, which is 17
M=L+3, which is 20
G= M*3, which is 60! |
MagaJamba
Mar 09, 2009
| Jae i did the same thing and all the people that got 6.66 with a bar notation u gotta round simple as that... |
pating
Mar 10, 2009
| jae, its M=3*G. So 20=3*G. And G=20/3. |
Paladin
Apr 09, 2009
| You did it correctly up to "Mike is 3 times as old as Greg"
You got Mike = 20, but then you said Greg = 20 *3 which would have been "Greg is 3 times as old as Mike"
Instead, Greg = 20/3 = 6 2/3 |
aliceedwards 
Jul 09, 2011
| A very fun teaser. |
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