Kombinatorikaning asosiy qoidalari — 7-sinf Algebra test savollari

1.Savatda 5 ta anor, 6 ta nok va 8 ta olma bor. Savatdan bitta meva tanlashni necha xil usulda amalga oshirish mumkin?

• A)19
• B)14
• C)240
• D)40

2.2 ta shim, 3 ta ko'ylak va 2 ta poyabzal bo'lsa, ulardan foydalanib necha xil usulda kiyinish mumkin?

• A)6
• B)7
• C)6'
• D)12

3.Gurlandan Urganchga 3 xil transport, Urganchdan Toshkentga 4 xil transport bilan borish mumkin. Gurlandan Toshkentga necha xil usulda borish mumkin?

• A)12
• B)7
• C)16
• D)9

4.A shahardan B shaharga 3 ta, B shahardan C shaharga 4 ta yo'l bor. A dan C ga (B orqali) necha xil yo'l bilan borish mumkin?

• A)9
• B)16
• C)12
• D)7

5.Do'konda 4 ta piyola, 3 ta likopcha bor. Piyola va likopcha juftligini necha xil usulda tanlash mumkin?

• A)12
• B)9
• C)16
• D)7

6.Bir sinfda 14 ta qiz va 18 ta o'g'il bola bor. Sinfda jami nechta o'quvchi bor?

• A)28
• B)252
• C)4
• D)32

7.Idishda 7 ta oq va 5 ta qora shar bor. Idishdan bitta sharni necha xil usulda olish mumkin?

• A)35
• B)25
• C)12
• D)2

8.A guruhda 10 ta, B guruhda 12 ta bola bor. Guruhlardan bitta bolani necha xil usulda tanlash mumkin?

• A)2
• B)22
• C)100
• D)120

9.Menyuda 3 xil taom va 2 xil ichimlik bor. Taom va ichimlikdan iborat kombinatsiyalar sonini toping.

• A)9
• B)6
• C)4
• D)5

10.Bir savatda 9 ta, ikkinchisida 6 ta olma bor. Savatlardan bitta olmani necha xil usulda tanlash mumkin?

• A)54
• B)3
• C)15
• D)36