Students can Download Chapter 2 Fractions and Decimals Ex 2.5, Question and Answers, Notes Pdf, KSEEB Solutions for Class 7 Maths, Karnataka State Board Solutions help you to revise complete Syllabus and score more marks in your examinations.

## Karnataka State Syllabus Class 7 Maths Chapter 2 Fractions and Decimals Ex 2.5

Question 1.

Which is greater ?

i) 0.5 or 0.05

Solution:

0.5 > 0.05 (∵ 0.5 = 0.50)

ii) 0.7 or 0.5

Solution:

0.7 > 0.5

iii) 7 or 0.7

Solution:

7 > 0.7 (∵ 7 = 7.0)

iv) 1.37 or 1.49

Solution:

1.49 > 1.37

v) 2.03 or 2.30

Solution:

2.30 > 2.03

vi) 0.8 or 0.88

Solution:

0.88 > 0.8 (∵ 0.8 = 80)

1 1/2 as a decimal is equal to 1.5.

Question 2.

Express as rupees using decimals :

i) 7 paise

Solution:

7 paise = Rs. 0.07

ii) 7 rupees 7 paise

Solution:

7 rupees 7 paise Rs. 7.07

iii) 77 rupees 77paise

Solution:

77 rupees 77 paise = ₹ 77.77

iv) 50 paise

Solution:

50 paise = 0.50

v) 235 paise

Solution:

235 paise = 2.35

Question 3.

i) Express 5cm in metre and kilometre

Solution:

5 cm = 0.05m = 0.00005km.

ii) Express 35mm in cm, m and km

Solution:

35mm = 3.5cm = 0.000035km

Question 4.

Express in kg :

i) 200g

Solution:

200g = 0.200kg = 0.2 kg

ii) 3470g

Solution:

3470g = 3.470kg

iii) 4 kg 8 g

Solution:

4kg 8g = 4.008 kg

Question 5.

Write the following decimal numbers in the expanded form :

i) 20.03

Solution:

ii) 2.03

Solution:

iii) 200.03

Solution:

iv) 2.034

Solution:

Question 6.

Write the place value of 2 in the following decimal numbers :

i) 2.56

Solution:

2.56 place value of 2 in the decimal number 2.56 = 2 ones place)

ii) 21.37

Solution:

21.37 place value of 2 in the decimal number 21.37 = 2 × 10 = 20. (2 is in tens place)

iii) 10.25

Solution:

10.25 = palce value of 2 in the decimal

iv) 9.42

Solution:

9.42 = place value of 2 in the decimal number

(2 is in hundredths place)

v) 63.352

Solution:

63.352 = place value of 2 in the decimal number

Question 7.

Dinesh went from place A to place B and from 12.7 km from C. Ayub went from place A to place D and from there to place C. D is 9.3 km from A and C is 11.8 km from D. Who travelles more and by how much ?

Solution:

Distance travelled from A to B = 7.5kms

Distance travelled from B to C = 12.7kms

Total distance travelled from A to B & B to C = 20.2 kms.

Ayub

Distance travelled from A to D = 9.3 kms

Distance travelled from D to C = 11.8 kms

Total distance travelled from A to D & D to C = 21.1 kms

∴ Ayub travelled more distance than Dinesh by = 21.1 – 20.2 = 0.9 kms.

Question 8.

Shyama bought 5 kg 300g apples and 3 kg 250 g mangoes. Sarala bought 4 kg of 800 g oranges and 4 kg 150g bananas. Who bought more fruits?

Solution:

Shyama:

Weight of Apples bought = 5.300kgs

Weight of Mangoes bought = 3.250kgs

Total weight of fruits = 8.550kgs

Sarala:

Weight of oranges bought = 4.800kgs

Weight of Bananas bought = 4.150kgs

Total weight of fruits = 8.950kgs

8.950 >8.550

∴ Sarala bought more fruits than Shyama.

Question 9.

How much less is 28 km than 42.6 km?

Solution:

∴ 28 km is less than 42.6 km by 14.6 kms.