Siang semua.

Beberapa hari terakhir dunia dikejutkan oleh soal matematika seorang siswa kelas 3 SD di Singapura. Soal ini bukan hanya soal biasa yang berisi hitungan, namun sampai melibatkan logika dan perkiraan. Soal ini muncul di dunia maya melalui postingan presenter berita Singapura, Kenneth Kong, pada Sabtu (11/4/2015). 

Daripada penasaran, berikut soalnya :

Albert dan Bernard baru saja berteman dengan Cheryl dan mereka ingin mengetahui hari ulang tahunnya. Cheryl lalu memberikan 10 pilihan, yaitu:

15 Mei, 16 Mei, 19 Mei 
17 Juni, 18 Juni 
14 Juli, 16 Juli, 
14 Agustus, 15 Agustus, dan 17 Agustus

Cheryl kemudian mengatakan kepada Albert dan Bernard secara terpisah tentang bulan dan tanggal ulang tahunnya secara berurutan.

Albert dan Bernard kemudian membuat pernyataan:

Albert    : Saya tidak tahu kapan ulang tahun Cheryl, tetapi saya yakin Bernard tidak mengetahuinya juga.

Bernard   : Awalnya saya tidak tahu ulang tahun Cheryl, tetapi saya sekarang tahu.

Albert   : Berarti saya juga tahu ulang tahun Cheryl. 

Jadi, kapan ulang tahun Cheryl?

Penasaran jawabannya? Berikut jawabannya berdasarkan hasil analisis Nicholas Giovanni, Asisten Laboratorium Fisika Metalurgi pada Departemen Teknik Metalurgi dan Material, Fakultas Teknik, Universitas Indonesia, seperti dituturkan pada Kompas.com , pada hari Senin (13/4/2015).

"Kemungkinan awal adalah 15 Mei, 16 Mei, 19 Mei, 17 Juni, 18 Juni, 14 Juli, 16 Juli, 14 Agustus, 15 Agustus, dan 17 Agustus.

Bila ulang tahun Cheryl adalah 18 Juni ataupun 19 Mei, maka Bernard yang diberi tahu angka pasti langsung tahu karena angka 18 dan 19 tidak terdapat pada bulan-bulan lain.

Sisa kemungkinannya: 15 Mei, 16 Mei, 17 Juni, 14 Juni, 16 Juli, 14 Agustus, 15 Agustus, dan 17 Agustus.

Bila Albert diberi tahu bahwa bulan ultah Cheryl adalah Mei atau Juni, maka Albert tidak akan bisa mengatakan, “I know that Bernard does not know, too.” Hal itu membuktikan bahwa Albert diberi tahu bahwa ultah Cheryl antara Juli atau Agustus.

Sekarang, sisa kemungkinannya adalah 14 Juli, 16 Juli, 14 Agustus, 15 Agustus, dan 17 Agustus.

Bernard diberi tahu tanggal. Dari perkataan Albert, Bernard tahu bahwa Albert diberi tahu bulan Juli atau Agustus. Bila Bernard diberi tahu tanggal 14, maka dia masih akan bingung karena terhadap 14 Juli dan 14 Agustus. Nyatanya dia berkata, “But I know”. Berarti Bernard tidak diberi tahu bahwa tanggalnya adalah 14. 

Pada tahapan ini, Bernard telah mengetahui bahwa ulang tahun pada tanggal 16 Juli. Sebabnya, Cheryl telah memberitahu Bernard bahwa anggal kelahirannya adalah 16.

Sebelumnya, sisa kemungkinannya adalah 16 Juli, 15 Agustus, dan 17 Agustus. Bila Albert diberi tahu bulannya Agustus, maka dia masih akan bingung karena ada 15 Agustus dan 17 Agustus. Bila Albert diberi tahu bulannya Juli, maka dengan tereliminasinya tanggal 14 Juli, maka satu-satunya sisa tanggal adalah 16 Juli. Oleh karena itu, Albert berkata, “Then I also know when….”

Awalnya, Kong menyatakan bahwa pertanyaan itu ditujukan untuk pelajar sekolah dasar kelas V. Namun, Senin, dia mengonfirmasi bahwa pertanyaan itu ditujukan kepada anak sekolah menengah pertama kelas III dan merupakan soal level olimpiade.

Semoga saja soal semacam itu tidak muncul di soal UN kiya besok.

Cheers..

a

THE  BOTANIST

            glogster.com

Hello, Good People. Nice to meet you. 

 I have so many dreams, but in this post i just show you one of them. That is THE BOTANIST.

First, i must tell you “What’s Botanist?'. Botanists are the people that studies many of plant~from microorganism until the giant tree! The Botanist’s activities are studying the biology of plants, fungi and other organisms. Through the study of plants, botanists can record the impacts of human activity on the environment~ the way plants breed and grow, as well as the structure and genetic make-up of various species. This knowledge can be used to develop and promote environmental protection programs, improve plant growing techniques and identify and extract plant products used in medicines, food, fabrics and other products. Some botanists may also search for and classify new plant species. 

(If you want to know more about Botanist, you can go to http://studentcentre.unimelb.edu.au/eastern/careers_in_science/careers_in_life_sciences/botanist )

Now, i live in Indonesia that has so many complex problem, include the agricultural. One of the Agricultural problems are the quantity and quality of the agricultural products. Why this happen? Indonesian farmer can’t develop the agriculture system. They just stuck on the traditional system, so they can’t productive and they can’t make a good quality product, whereas now the Indonesia’s population reach 200M. So, it causes the groceries like rice, chillies, salts, tomatoes, etc. are very expensive and frequently shortages. To solve this problem, the government take action to import the agriculture products. This why the products are very expensive.

But, the Indonesian mainly live below the poverty line, so they can’t buy the agriculture product. The impact is they can’t make any food to eat.It causes they have no energy to think, study well, and be poductive. If the generations can study well, think well, and productive, how is the fate of this country? From the explanation, I can conclude that the agriculture is indirectly affect the development of country.

So, it’s my reason to become a botanist~help the government to develop the Indonesia’s agriculture. I want to make a super food plants and seeds that can harvested only a few month, anti-pest, and healthy and of course~cheap food that reachable for all of population.If the holy purpose is success,we can decrease the import and increase the export.

I hope and pray, in the future i can be useful for this country and the worldwide. InshaAllah i will make the changes in Agricultural sector and make the welfare for all the world’s poulation.

Yuanraga

December, 13 2014

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Assalamu'alaikum

Hello,good people. This is my first word in this blog. Actually,i have the previous blog,but i forgot its password. Now,i will post my task from Mrs. Gartatik about answer the questions.

Q: Imagine you had a hundred dollars, but you couldn’t keep it. You had to give it away to a person or   charity. Who would you give it to? What would you want them to do with it?

A: I will give all of it for poor man,because i believe in miracle of giving. I want they use my money to build a business, so they still can earn money from it. I will not give my money to beggars,because most of them still can work properly,expect and old beggars or handicapped beggars.

Q: Describe one time when you were brave.

A: I will very brave,if i am in danger. The insane human DNA  will active if we brave and believe we can do it (Miss Dewi Indrayani said that). So,i will do all the thing that can help me pass the danger even it's insane to happen.

Q: If you could cook any meal for your family, what would you cook? Describe the meal and tell how you would make it.

A: I will make the meal named "Sambel Tumpang". It made from fermented tempe not fermented soya. The ingredients are : dice-sliced beef, galangal(lengkuas), bay leaves, fermented tempe ,garlic, red onions ,cayenne peppers ,red chili, turmeric, lime leaves and coconut milk.  

1. Boil all of the ingredients except tempe and coconut milk the beef until half-done,then add the tempe.
2. Grind all of them,except the beef,lengkuas,and bay leaves.
3. Boil all of them and add the coconut milk. Wait until boiled and the water is almost dry.

Q: Imagine you wake up and saw dinosaur. In your backyard. Write a story, telling what you see and do. 

A: I see the T-rex. It's very big and wild. It's very dangerous for me. I decide myself if it's not a dream. Then,i will tame it and i tame it hard,but i successfully tame it :D. Then i will use the T-rex to go to school and protect me and my house from thief or other criminals people.

Q: Imagine you opened your own restaurant. Tell the name of your restaurant. Explain what the restaurant look like, who works there, and what you serve.

A: I will named it "HY!" restaurant. "HY!" is abbreviation of "Healthy and Yummy!". Cause i love the simple ethnic,my restaurant's decoration looks like the Joglo house with some modern modification and i will add some unique properties from other area in Indonesia like West Sumatra, West Java, Tana Toraja, Papua, and many more. I just hire the professional,hard-worker,and creative worker. I will serve many healthy and yummy organic food and it must a halal food because i am Muslim.

Q: Describe your favorite character from a movie, or television.

A: I will describe one of my favorite character from a movie, Cade Yeager. Cade Yeager is Tessa's Father in TRANSFORMERS: Age of Extinction. He is played by Mark Wahlberg---American actor. Cade Yeager is a struggling robot inventor. He do it to pay his daughter's college,Tessa. He is a hard-worker and love the challenge. One day,he bought an Old Truck from his friend. He soon discovers that is an injured Optimus Prime and repairs him.

The Cemetery Wind---CIA's elite force and Lockdown---Cemetery Wind's partner, hunt the Optimus. Soon,they travel and threatened Cade and his daughter. But they can escape from Lockdown and Cemetery Wind. Since that time, He help Optimus and Autobots fight against Lockdown and Cemetery Wind. If you want to know more you can watch the movie.

Q: Write a story titled “My Journey on a Pirate Ship.” You and your friends can star in the story.

A:                                                  My Journey on a Pirate Ship

One day I and Zima sailed to the sea for fishing. After get many fish,we decided to back to home. But,unfortunately our ship blades snagged something. "What the hell it is!",I grumbled.

I decided to check it. "Ooo... just a rope." I said, but the rope is very long and like connected with something. Then, i followed the rope and how surprised I! I found The Lost Pirate Ship such that the people talked about. Soon, I raised to the surface and told it to Zima. "Are you sure? Took me there!" Zima shouted and immediately dived in with me.

After we arrived at the ship,we entered and explored the ship. We saw many coral and beautiful fish here. The atmosphere is very dreadful. There are many remains of human bones and skulls. But, still beautiful with colorful corals and fish. After we explored the ship, we did not find any treasure like gold coins or diamonds. The wall of the ship is very creepy to stepped on it. I found some the crews' uniform. it looked like an old soldier's uniform. Fortunately, i brought underwater camera, so i took some photo for the evidence.

I signaled Zima to raised to the surface. After we reached our ship and clean our ship's blades, we went back to home.

Q: If you could have any animal for a pet, what would it be? Describe the pet and how you would take  care of it.

A: I would like to have a bird. Especially, the Peregrine Falcon. It is the fastest animal in the world. Its speed reach 322 km/H. It's equal to F1 car's speed. Its fur color is slate gray and black on wings. its length is 34 to 58 centimeters. It is live at every region in this worlds, except in extreme polar region, very high mountain, and some rain forests. It is migrate from arctic to tropic when breeding season. It is a predator, so its food is meat. They usually eat the small bird, small reptiles, even small insect. I will make its cage like real environment where it live. I will give it enough food. I will release it food,not give it directly in order to maintain its hunting instinct.

Q: Do you have any brother or sister? If  you do tell what they’re like. If not, tell whether or not you would like to have a brother or sister.

A: Yes, i have one sister called Yuna. The age difference between us is 7 years old. Now,she is on 2nd grade of ES Tempelan Blora.

She has very long hair. Some of her Tooth are missing. She has little noise and brown eyes.Her skin is brown. She is annoying sister. We usually scolded by our mom because we cannot live peacefully. But, actually she is a care person. Her favorite food is fried chicken and her favorite drink is fruit smoothie. Her hobbies are drawing ,cycling with me, and many more. I think in her future, She will be a Businesswoman, because she usually act like a cashier or a food seller.

Although, she is very annoying , but i still love her as my only sister.

I think it's time to end this task. That's all for now. Sorry for some misspelled words. Thank's for yout attention, good people. See you on TOP!

Assalamu'alaikum...