(a) Rs. 5 to 50 paise

(b) 15 kg to 210 g

(c) 9 m to 27 cm

(d) 30 days to 36 hours

Answer :

(a) Rs. 5 to 50 paise

Converting the given quantities into same units, we have

Rs 5 = 5 × 100 = 500 paise

\(\therefore \) 500 paise : 50 paise

= 10 : 1

(b) 15 kg to 210 g

Converting the given quantities into same units, we have
15 kg = 15 × 1000 = 15000 g

\(\therefore \)15 kg : 210 g = 15000 g : 210 g

= 1500 : 21 = 500 : 7

(c) 9 m to 27 cm
Converting the given quantities into same units, we have

9 m = 9 × 100 = 900 cm

\(\therefore \)9m: 27 cm = 900 cm : 27 cm

= 100 : 3 .

(d) 30 days to 36 hours

Converting the given quantities into same
units, we have

30 days = 30 × 24 hours

\(\therefore \)30 days : 36 hours

= 720 hours : 36 hours = 20:1

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- NCERT solutions for class 7 maths chapter 2 Fractions and Decimals
- NCERT solutions for class 7 maths chapter 3 Data Handling
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- NCERT solutions for class 7 science chapter 2 Nutrition In Animals
- NCERT solutions for class 7 science chapter 3 Fibre to Fabric
- NCERT solutions for class 7 science chapter 4 Heat
- NCERT solutions for class 7 science chapter 5 Acids Bases and Salts
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