PROBLEM SOLVING

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PROBLEM SOLVING

Post by yang-ew on Thu Oct 01, 2009 3:19 pm

Puzzles & Brain Teasers

1. The Hare and the Tortoise





Haretown and Tortoiseville are 48 miles apart. A hare travels at 10 miles per hour from Haretown to Tortoiseville, while a tortoise travels at 2 miles per hour from Tortoiseville to Haretown.

If both set out at the same time, how many miles will the hare have to travel before meeting the tortoise en route?

2. Old Man Wrinkle




Man Wrinkle spent one-fourth of his life as a boy, one-eighth as a youth, and one-half as an active man. If Man Wrinkle spent 11 years as an old man, then how many years did he spend as an active man?



3. Your Piggy Bank



Dad gives you money every day to put in your new piggy bank. He gives money to you in such a way that the money in the piggy bank doubles with each passing day.

If you already have 1 cent in the piggy bank and Dad gives you 1 cent the first day, 2 cents the second day, 4 cents the third day and so on, then your piggy bank gets full on the 9th day.









1.On which day will your piggy bank be half-full?
For example, type 6 if your answer is 6th day.
2.In addition to Dad's contributions, if Mom also gave you 1 cent the first day, 2 cents the second day, 4 cents the third day and so on, then on which day would your piggy bank be about half-full?
For example, type 6 if your answer is 6th day.
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Re: PROBLEM SOLVING

Post by rhaelyn keith on Mon Dec 28, 2009 3:51 am

i like your problems!! talagang brain teasers!!!hehe. may i request for more math problems?? yung medyo easy?hehe. ta man ada maananseran..hehe..tnx po..
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Re: PROBLEM SOLVING

Post by yang-ew on Tue Dec 29, 2009 5:10 pm

hehehe...answeran yu umuna nan inmuna ay nay ta waday ganas na... infachangan yu man. waday price na is graduation yu nu sinu nan umuna kendakayo ka high school ay maka-answer.

EXCLUSIVE for high school lang. Please present your solution.
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Re: PROBLEM SOLVING

Post by Saint Vincent's School on Tue Jan 26, 2010 4:35 pm

College students ngay mabalin?


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Re: PROBLEM SOLVING

Post by yang-ew on Tue Jan 26, 2010 9:41 pm

hehehe... no way Ryan. Amok sisiw lang manen kanyam daytoy but you´re over qualified ading ko. Next batch kayon, darating tayo djan...

Apay napanan ti high school students tayo ngay? Tah!!! apay adi yu laychen nan price/award is graduation yu??? Nu sino nan first ay inpost si correct answer (individual or group) will be the WINNER. Please indicate your solution and don´t forget to write your name. If you solved it by group, it should not be more than 3 students per group to qualify.

GOOD LUCK!!!
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Re: PROBLEM SOLVING

Post by anitoe27 on Thu Feb 04, 2010 12:31 am

Apay awan ti interesado nga high schoolers ditoy nga mang-answer? Nagasat kayo tata nga ubibing ta ada kastoy nga chances yu.. Dakami idi tiempo mi ket man-amano ti kastoy. You should take the challenges while you have this oppurtunity now. Qualified kami kuma ket kayat ko nga mainayon met...
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Re: PROBLEM SOLVING

Post by yang-ew on Sat Mar 06, 2010 4:48 pm

WE ARE EXTENDING THE DEADLINE OF THIS MATH CONTEST: SOLVING PROBLEM UNTIL MARCH 15, 2010. FIRST TO SUBMIT THE CORRECT SOLUTIONS AND ANSWERS WILL BE THE WINNER.

DEAR STUDENTS, YOU GOT THE WHOLE WEEK TO MAKE UP. GOOD LUCK!!!
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Re: PROBLEM SOLVING

Post by cbenna on Sun Mar 07, 2010 4:10 pm

.....helo anti.....kasanu ngay nu adi perfect nan score.....narigat ya...hehehe
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Re: PROBLEM SOLVING

Post by yang-ew on Mon Mar 08, 2010 4:36 pm

wen man... basta answeran yu sat nu adi perfect score atlis pinachas yu. nu sino nan highest score na sya nan winner.

ones you posted your answer adi et mubalin ay in-attempt kayo for the second try. you will be disqualified if you edit your final answer.

this can be individual or group work. DON´T forget to please write your names before you upload your answers, thanks!
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Re: PROBLEM SOLVING

Post by cbenna on Mon Mar 15, 2010 4:28 pm

Haretown and Tortoiseville are 48 miles apart. A hare travels at 10 miles per hour from Haretown to Tortoiseville, while a tortoise travels at 2 miles per hour from Tortoiseville to Haretown.

If both set out at the same time, how many miles will the hare have to travel before meeting the tortoise en route?

10 miles of the hare + 2 miles of totroise=12 hours
48/12=4 total hours
4x10=40 (the hare travels in 4 hours)
4x2=8 (the tortoise " " " " )

the hare needs to travel 40 miles before meeting the tortoise


Man Wrinkle spent one-fourth of his life as a boy, one-eighth as a youth, and one-half as an active man. If Man Wrinkle spent 11 years as an old man, then how many years did he spend as an active man?



½ of the man’s life was used as an active man, meaning the other half is even to 11 years (old man), 1/8(youth) and 1/4 (boy)



1/8+1/4=3/8

½-3/8=1/8 which is equal to the 11 years of his life

½ divided by 1/8 is equal to 4…..

So 4 x 11= 44 (the other ½)



The man spent 44 years of his life as an active man ……





Dad gives you money every day to put in your new piggy bank. He gives money to you in such a way that the money in the piggy bank doubles with each passing day.

If you already have 1 cent in the piggy bank and Dad gives you 1 cent the first day, 2 cents the second day, 4 cents the third day and so on, then your piggy bank gets full on the 9th day.





On which day will your piggy bank be half-full?
For example, type 6 if your answer is 6th day.



X= # of days

Y= savings per day



1



x

1

2

3

4

5

6

7

8

9

y

2

2

4

8

16

32

64

128

256



8th day……..the day when the bank will be half full



In addition to Dad's contributions, if Mom also gave you 1 cent the first day, 2 cents the second day, 4 cents the third day and so on, then on which day would your piggy bank be about half-full?
For example, type 6 if your answer is 6th day.



2



x

1

2

3

4

5

6

7

8

9

y

3

4

8

16

32

64

128

256

512

3+4+8+16+32+64+128=255

256 is ½ of 512



The bank is about half full in 7th day





Sub. by:

Kranz M. Kadlosan (grade 6)

Jaypee M. Nunez (4th year)

Robynson M. Kadlosan (4th year)
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Re: PROBLEM SOLVING

Post by yang-ew on Thu Mar 18, 2010 11:58 am

Good job guys. You got a perfect score for this math challenge. CONGRATULATIONS! your award will be given on the graduation day, March 27, 2010.
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Re: PROBLEM SOLVING

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