NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals Ex 2.5

NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals Ex 2.5, are part of NCERT Solutions for Class 7 Maths. Here we have given NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals Ex 2.5.

NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals Ex 2.5

Question 1.
Which is greater?

1. 0.5 or 0.05
2. 0.7 or 0.5
3. 7 or 0.7
4. 1.37 or 1.49
5. 2.03 or 2.30
6. 0.8 or 0.88

Solution:

Question 2.
Express as rupees using decimals:

1. 7 paise
2. 7 rupees 7 paise
3. 77 rupees 77 paise
4. 50 paise
5. 235 paise.

Solution:

1. 7 paise = ₹ 0.07
2. 7 rupees 7 paise = ₹ 7.07
3. 77 rupees 77 paise = ₹ 77.77
4. 50 paise – ₹ 0.50
5. 235 paise = ₹ 2.35

Question 3.

1. Express 5 cm in metre and kilometre
2. Express 35 mm in cm, m and km?

Solution:

1. 5 cm = 0.05 m = 0.00005 km
2. 35 mm = 3.5 cm = 0.035 m = 0.000035 km

Question 4.
Express in kg:

1. 200 g
2. 3470 g
3. 4 kg 8 g

Solution:

1. 200 g = 0.200 kg = 0.2 kg
2. 3470 g = 3.470 kg
3. 4 kg 8 g = 4.008 kg.

Question 5.
Write the following decimal numbers in the expanded form:

1. 20.03
2. 2.03
3. 200.03
4. 2.034

Solution:

Question 6.
Write the place value of 2 in the following decimal numbers:

1. 2.56
2. 21.37
3. 10.25
4. 9.42
5. 63.352

Solution:
(i) Place value of 2 in the decimal number 2.56 = 2 × 1 = 2
(ii) Place value of 2 in decimal number 21.37 = 2 × 10 = 20
(iii) Place value of 2 in the decimal number

Question 7.
Dinesh went from place A to place t B and from there to place C. A is 7.5 km from B and B is 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. f Who travelled more and by how much?
Solution:

Question 8.
Shyama bought 5 kg 300 g apples and 3 kg 250 g mangoes. Sarala bought 4 kg 800 g oranges and 4 kg 150 g bananas. Who bought more fruits?
Solution:
For Shyama
Apples bought = 5 kg 300 g = 5.300 kg
Mangoes bought = 3 kg 250 g = 3.250 kg
∴ Fruits bought = Apples bought
+ Mangoes bought = 5.300 kg + 3.250 kg

For Sarala
Oranges bought = 4 kg 800 g = 4.800 kg
Bananas bought = 4 kg 150 g = 4.150 kg
∴ Fruits bought = Oranges bought
+ Bananas bought

Question 9.
How much less is 28 km than 42.6 km ?
Solution:

So, 28 km is less than 42.6 km by 14.6 km.

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