Page 18 - DIO RIYANTO_TUGAS 2_Spread

MTKU – 3.3 / 4.3 / 5/ 1.1

Agar lebih memahami, selessaikan ayo berlatih berikut.

Ayo berlatih!

Setelah kalian memahamiuraian singkat materi dan contoh di atas, maka selesaikan
masalah berikut:
1. Tentukan nilai n dari persamaan nCn-2 = 36.
2. Suatu kelas terdiri 20 siswa, akan dibentuk kelompok yang terdiri dari 3 orang.

Tentukan banyak kelompok yang terbentuk!

3. Suatu tim bulu tangkis terdiri atas 5 anggota. Akan ditentukan 2 orang untuk
bermain tunggal dan 2 pasang untuk bermain ganda. Jika peraturan yang dipakai
bahwa pemain tunggal boleh bermain ganda seklai. Tentukan banyak pilihan yang
bisa dibentuk!
4. Sepuluh orang akan bepergian dengan dua mobil yang masing-masing
berkapasitas 6 orang dan 7 orang. Jika setiap mobil harus berisi sekurang-
kurangnya 2 orang, maka banyak kemungkinan mereka berdistribusi dalam 2
mobil tersebut ada berapa cara?

Jawab: ......................................................................................................................................................................

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