Proporsional kesmalarning xossalari — 9-sinf Geometriya test savollari

1.a:b = 5:7 va a+b = 48 bo‘lsa, a va b ni toping.

• A)24 va 24
• B)20 va 28
• C)15 va 33
• D)21 va 27

2.To‘rtta son proporsional (a:b = c:d) bo‘lib, a = 6, b = 8, d = 12. c ni toping.

• A)9
• B)6
• C)10,7
• D)16

3.a:b = 2:3, b:c = 3:4 bo‘lsa, a:c nisbatni toping.

• A)3:4
• B)2:3
• C)1:2
• D)1:4

4.5:x = 15:24 proporsiyada x ni toping.

• A)72
• B)3
• C)8
• D)40

5.$\frac{3}{5}=\frac{x}{20}$ proporsiyada x ni toping.

• A)15
• B)10
• C)33,3
• D)12

6.$\frac{4}{9}=\frac{12}{x}$ proporsiyada x ni toping.

• A)27
• B)3
• C)48
• D)36

7.$\frac{a}{5}=\frac{6}{15}$ tenglamadan a ni toping.

• A)4,5
• B)1,8
• C)2
• D)18

8.a/$b=\frac{3}{4}$ va b = 16 bo‘lsa, a ni toping.

• A)12
• B)20
• C)9
• D)21,3

9.2 va 8 sonlarining o‘rta proporsionalini toping.

• A)5
• B)10
• C)4
• D)16

10.3 va 27 sonlarining o‘rta proporsionalini toping.

• A)9
• B)81
• C)30
• D)15