Students can download Chapter 12 Ratio and Proportion Ex 12.2 KSEEB Solutions for Class 6 Maths helps you to revise the complete syllabus.

## Karnataka State Syllabus Class 6 Maths Chapter 12 Ratio and Proportion Ex 12.2

Question 1.

Determine if the following are in proportion.

a) 15, 45, 40, 120

Solution:

Therefore, 15 : 45 = 40 : 120

Hence, these are in proportion

b) 33, 121, 9, 96

Therefore 33 : 121 ≠ 9 : 96

Hence, these are not in proportion

c) 24, 28, 36, 48

Therefore, 24 : 28 ≠ 36 : 48

Hence, these are not in proportion

d) 32, 48, 70, 210

Therefore 32 : 48 ≠ 70 : 210

Hence, these are not in proportion

e) 4, 6, 8, 12

Therefore 4 : 6 = 8 : 12

Hence, these are in proportion

f) 33, 44, 75, 100

Therefore, 33 : 44 = 75 : 100

Hence, these are in proportion

Question 2.

Write true (T) or False (F) against each of the following statement:

Solution:

a) 16 : 24 :: 20 : 30

Therefore 16 : 18 = 28 : 30

Hence, True

b) 21 : 6 :: 35 : 10

Therefore 21 : 6 = 34 : 10

Hence, True

c) 12 : 18 :: 28 : 12

Therefore 21 : 18 ≠ 28 : 12

Hence, True

d) 8 : 9 :: 24 : 27

Therefore, True

e) 5 : 239 :: 3 : 4

Therefore 5.2 : 3.9 ≠ 3 : 4

Therefore 0.9 : 0.36 = 10 : 4

Hence, True

f) 0.9 : 0.36 :: 10.4

Therefore 0.9 : 0.36 = 10.4

Hence, True

Question 3.

Are the following statements true?

Solution:

a) 40 persons : 200 persons = Rs 15 : Rs 75

True

b) 7.5 litres : 15 litres = 5 kg : 10 kg

True

c) 99 kg : 45 kg = Rs 44 : Rs 20

True

d) 32 m : 64 m = 6 sec : 12 sec

True

e) 45km : 60 KM = 12 hrs : 15 hrs

False

Question 4.

Determine if the following ratios from a proportion. Also, Write the middle terms and extreme terms where the ratios from a proportion,

Solution:

Yes, These are in proportion middle terms are 1 m, Rs 40

Extreme terms are 25 m, Rs 160

b) 39 litres :65 litres and 6 bottles:10 bottles

Yes, These are in proportion middle terms are 65 litres, 6 bottles Extreme terms are 39 litres, 10 bottles

c) 2 kg :80 kg and 25 g : 625 kg

No, These are in proportion

d) 200ml : 2.5 litre and Rs 4 : Rs 50

1l = 100 ml

2.5 l = 2500 ml

Yes , These are in proportion middle terms are 2.5 l, Rs 4

Extreme terms are 200 ml ,Rs 50