Suatu kelas terdiri dari 45 siswa. Diberikan tes matematika yang terdiri dari 4 soal.
38 siswa menjawab soal nomor 1 dengan benar,
35 siswa menjawab soal nomor 2 dengan benar,
31 siswa menjawab soal nomor 3 dengan benar,
42 siswa menjawab soal nomor 4 dengan benar.
Jumlah siswa paling sedikit yang dapat menjawab empat nomor dengan benar ada. . .
SOLUSI :
Banyaknya siswa yang menjawab soal nomor 1 salah = 45 - 38 = 7
banyaknya siswa yang menjawab soal nomor 2 salah = 45 - 35 =10
banyaknya siswa yang menjawab soal nomor 3 salah = 45 - 31 = 14
banyaknya siswa yang menjawab soal nomor 4 salah = 45 - 42 = 3
jadi banyaknya siswa yang menjawab salah minimal 1 nomor adalah 7 + 10 + 14 + 3 = 34
sehingga diperoleh banyaknya siswa yang menjawab dengan benar keempat soal tersebut adalah 45 - 34 = 11 siswa. -QED-
Sabtu, 28 Februari 2009
Ulangan Matematika
Langganan:
Posting Komentar (Atom)
26 komentar:
wah-wah, sy mumet mas!!! kyknya hrs pake coret2an nih biar paham. Btw, sy juga pny tebakan :
"Suatu tim futsal terdiri dari 8 orang pemain.
Tim itu akan bermain selama 40 menit.
Permainan tsb selalu dimainkan oleh 5 orang, yg artinya 3 orang harus duduk di bangku cadangan.
Bgmn cara agar 8 orang tersebut bermain dengan jatah waktu yg sama?Dan berapakah jatah waktu masing2 orang? (clue : pemain yang sdh diganti boleh masuk lagi manggantikan temannya)".
Kyknya kita pny hobi sama nih mas, cuman pinteran mas. Kapan2 kukasih tebakan lg. Slm kenal :)
ooo...sy ngerti tebakan mas. tp cara mas ga bs dipake kalo angkanya gini:
satu kelas ada 10 siswa
yg bs ngerjain soal a ada 8
yg bs ngerjain soal b ada 9
yg bs ngerjain soal c ada 5
yg bs ngerjain soal d ada 5
brp kmungkinan terkecil jml murid yg bs ngerjain semua soal??
1 orang mengerjakan abcd
4 orang mengerjakan abd
1 orang mengerjakan abc
1 orang mengerjakan ac
2 orang mengerjakan bc
1 orang megerjakan ab
thx atas semua tanggapannya. sory lom sempat bls coz lg skripsi. maaf tlh mengecewakan! tp jgn nangis ya he..he..
aduh tambah pusing ane bos healthlovemoneyandfamily
ga usah terlalu dipikirkan, dinikmati z!
pusing tapi asyik juga bentar ak pikirkan ..hahahhaa... mungkin nanti bisa mendapatkan hasilyang memuaskan ..wkekekeke...
akhirnya ngeti juga... susah jelasin nya.. tapi bagus juga pertanyaannya. matematika memanga asyik..thx.. post nya..
Do You interesting how to [b]Buy Viagra per pill[/b]? You can find below...
[size=10]>>>[url=http://listita.info/go.php?sid=1][b]Buy Viagra per pill[/b][/url]<<<[/size]
[URL=http://imgwebsearch.com/30269/link/viagra%2C%20tramadol%2C%20zithromax%2C%20carisoprodol%2C%20buy%20cialis/1_valentine3.html][IMG]http://imgwebsearch.com/30269/img0/viagra%2C%20tramadol%2C%20zithromax%2C%20carisoprodol%2C%20buy%20cialis/1_valentine3.png[/IMG][/URL]
[URL=http://imgwebsearch.com/30269/link/buy%20viagra/3_headsex1.html][IMG]http://imgwebsearch.com/30269/img0/buy%20viagra/3_headsex1.png[/IMG][/URL]
[b]Bonus Policy[/b]
Order 3 or more products and get free Regular Airmail shipping!
Free Regular Airmail shipping for orders starting with $200.00!
Free insurance (guaranteed reshipment if delivery failed) for orders starting with $300.00!
[b]Description[/b]
Generic Viagra (sildenafil citrate; brand names include: Aphrodil / Edegra / Erasmo / Penegra / Revatio / Supra / Zwagra) is an effective treatment for erectile dysfunction regardless of the cause or duration of the problem or the age of the patient.
Sildenafil Citrate is the active ingredient used to treat erectile dysfunction (impotence) in men. It can help men who have erectile dysfunction get and sustain an erection when they are sexually excited.
Generic Viagra is manufactured in accordance with World Health Organization standards and guidelines (WHO-GMP). Also you can find on our sites.
Generic [url=http://gsmmind.ru/english]free porn movies online[/url] is made with thorough reverse engineering for the sildenafil citrate molecule - a totally different process of making sildenafil and its reaction. That is why it takes effect in 15 minutes compared to other drugs which take 30-40 minutes to take effect.
[b]Natural Viagra Herb
costa rica tico paradise viagra
Methadone And Viagra
quick forum readtopic viagra none online
Sale Viagra
site ebaycouk kamagra viagra sildenafil
Viagra Vitamins
[/b]
Even in the most sexually liberated and self-satisfied of nations, many people still yearn to burn more, to feel ready for bedding no matter what the clock says and to desire their partner of 23 years as much as they did when their love was brand new.
The market is saturated with books on how to revive a flagging libido or spice up monotonous sex, and sex therapists say “lack of desire” is one of the most common complaints they hear from patients, particularly women.
ampun...gak bisa nangkap.
viagra online viagra 30 year old - cheap viagra paypal payment
viagra online without prescription viagra dosage 200 mg - buy cheap viagra online us
soma for sale buy cheap soma no prescription - soma bra discount code
buy soma online buy soma online yahoo answers - soma drug movie
tramadol online tramadol apap - order tramadol online usa
buy tramadol next day tramadol withdrawal medication - tramadol iv
buy xanax online without prescription xanax dosage schedule - xanax side effects for cats
xanax online can mixing xanax and alcohol kill you - xanax effects 2mg
carisoprodol 350 mg carisoprodol zoloft - carisoprodol codeine
xanax online does drug xanax do you - xanax drug information side effects
buy tramadol online 4 50 mg tramadol - buy tramadol with american express
http://buytramadolonlinecool.com/#96430 buy tramadol online without prescriptions usa - tramadol during pregnancy
buy tramadol online tramadol 50 mg recommended dose - order tramadol online with visa
buy klonopin online klonopin 5mg effects - klonopin high effects
klonopin pharmacy klonopin 2mg day - can overdose klonopin kill you
buy carisoprodol carisoprodol soma narcotic - carisoprodol buy no prescription
Posting Komentar