Math Brain Teasers

Avatar Image
shortstuffO3 | 04:03 Thu 08th May 2008 | Quizzes & Puzzles
7 Answers
First one: What is double one-half of one-fourth of one-tenth of 80,000?

Second one: Eight years ago Jane was twice as old as Ryan. Two years ago she was as old as Ryan is now. Now Ryan is 5/6 as old as Jane. How old are they?



1 to 7 of 7rss feed

Best Answer

No best answer has yet been selected by shortstuffO3. Once a best answer has been selected, it will be shown here.

For more on marking an answer as the "Best Answer", please visit our FAQ.
1. 2000

2. Jane is 12, Ryan is 10.
I agree Jane is 12 and Ryan 10 but get a different solution for the first one.
one-fourth of one-tenth is one-fortieth.
one-half of one-fortieth is one-eightieth
double one-eightieth is back to one-fortieth
one-fortieth of 80 000 is 2 000

Sorry cancross. I misread your solution as being1 200.
and its a quarter not a fourth and its maths not math - problems with English too?
I wonder why you are doing these questions in the night. Either you live somewhere in a different time zone to the UK or you are night shift workers relaxing!!!! or you are insomniacs......
Different time zone!
Question Author
Yep different time zones. And no, I am no English major but I do fairly well in it. That is just exactly how the problem was written. My algebra teacher has them every week, so, blame her or where she gets them.

1 to 7 of 7rss feed

Do you know the answer?

Math Brain Teasers

Answer Question >>

Related Questions

Sorry, we can't find any related questions. Try using the search bar at the top of the page to search for some keywords, or choose a topic and submit your own question.