Brain Teasers

careless25 · 2009-01-27 06:17:21

Yes all correct!!

JaneFairfax · 2009-01-27 07:13:18

Last edited by JaneFairfax (2009-01-27 07:40:06)

careless25 · 2009-01-27 07:37:29

JFF i don't think i have posted a 27 yet.
Yet i agree with you! The puzzle was invented by Charles S. Dodgson or better known as Lewis Carroll.

27. A man drove his car 1 mile to the top of a mountain at the rate of 15 miles per hour. How fast must he drive 1 mile down the other side in order to average 30 miles per hour for the whole trip of 2 miles?

28. A bottle and its cork cost together $1.10. The bottle costs a dollar more than the cork. How much does the bottle cost?

29. Each of two apple women had 30 apples for sale. The first sold hers at the rate of 2 for a nickel, the second at the rate of 3 for a nickel. at the end of the day their respective receipts were 75 cents and 50 cents, or $1.25 in all. The next day the women decided to do business together, so they pooled their 60 apples and sold them at a rate of 5 for a dime( 2 for a nickel plus 3 for a nickel). Upon counting their joint receipts at the end of the day they were dismayed to find that they had only $1.20. They searched all about them for that other nickel, and wound up by bitterly accusing each other of having taken it. Where was it?

JaneFairfax · 2009-01-27 08:28:55

Last edited by JaneFairfax (2009-01-27 08:37:16)

careless25 · 2009-01-27 11:17:59

all correct!

careless25 · 2009-01-30 06:19:21

How about i restate 25:

Where can a man set out from his house, walk five miles due south, five miles due west, and five miles due north - and find himself back home? The original question: What color was the bear?

30. A large business firm was once planning to open a new branch in a certain city, and advertised positions for three clerks. Out of the number of applicants the personal manager selected three promising young men and addressed them in the following way: " Your salaries are to begin at a rate of $1000 per year, to be paid every half-year. If your work is satisfactory, and we keep you, your salaries will be raised. Which would you prefer, a raise of $150 per year or a raise of $50 every half-year?" The first two of the three applicants eagerly accepted the first alternative, but the third young man, after a moments reflection, took the second. He was promptly put in charge of the other two, Why?

31. A clock strikes six in 5 seconds. How long does it take to strike twelve?

32. A frog is at a bottom of a 30-foot well. Each hour he climbs 3 feet and slips back 2. How many hours does it take him to get out?

JaneFairfax · 2009-01-30 07:42:34

careless25 wrote:

How about i restate 25:

It would be nice if you restated it in metric!!

careless25 · 2009-01-30 10:34:47

What is it with you and the metric system?
Anyways it doesnt matter, the answer can be derived without the use of any metric system:)

balyansk · 2009-02-07 02:20:47

30. every half year sal for first and second guy will be 500, 500, 575,575,650,650 and so on
however for the third guy it will be 500, 550,600,650,700,750 u can see the diff

31. 11 secs

32. 28 days

JaneFairfax · 2009-02-07 07:26:49

careless25 wrote:

What is it with you and the metric system?

And what is it with you that you and your cumbersome non-metric system? Are you honestly trying to tell me that you really like converting yards to miles so much?

Last edited by JaneFairfax (2009-02-07 07:36:00)

careless25 · 2009-02-07 08:17:35

no i m not saying that i like the non-metric system it is just that you have to live with. I kno it is much easier with a base 10 system. To tell you the truth i like doing math in my head just for the challenge of it, so converting from miles to yards, or any conversion is fun for me. There is no challenge in a base 10 system, its just ingrained in us.

emadstats · 2009-03-02 05:06:17

i dont know

Math Is Fun Forum

#101 2009-01-27 06:17:21

Re: Brain Teasers

#102 2009-01-27 07:13:18

Re: Brain Teasers

#103 2009-01-27 07:37:29

Re: Brain Teasers

#104 2009-01-27 08:28:55

Re: Brain Teasers

#105 2009-01-27 11:17:59

Re: Brain Teasers

#106 2009-01-30 06:19:21

Re: Brain Teasers

#107 2009-01-30 07:42:34

Re: Brain Teasers

#108 2009-01-30 10:34:47

Re: Brain Teasers

#109 2009-02-07 02:20:47

Re: Brain Teasers

#110 2009-02-07 07:26:49

Re: Brain Teasers

#111 2009-02-07 08:17:35

Re: Brain Teasers

#112 2009-03-02 05:06:17

Re: Brain Teasers

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