# Find the ratio of the following:

(a) 30 minutes to 1.5 hours

(b) 40 cm to 1.5 m

(c) 55 paise to ₹ 1

(d) 500 mL to 2 litres

**Solution:**

Ratio is defined as the comparison between two quantities of the same units that indicates how much of one quantity is present in the other quantity.

(a) 30 minutes to 1.5 hours

60 minutes = 1 hour

Hence, 30 minutes = 0.5 hour

Hence, 30 minutes to 1.5 hours = 0.5 / 1.5

Here, HCF of 0.5 and 1.5 is 0.5

= (0.5 ×1) / (0.5 × 3)

= 1 / 3

Therefore, the ratio of 30 minutes to 1.5 hours is 1 : 3.

(b) 40 cm to 1.5 m

100 cm = 1m

40 cm = 0.4 m,

Hence, 40 cm to 1.5 m = 0.4 / 1.5

= 4 / 15

Therefore, the ratio of 40 cm to 1.5 m is 4 : 15

(c) 55 paise to ₹ 1

₹1 = 100 paise

Hence, 55 paise to ₹ 1 = 55 / 100

Here, HCF of 55 and 100 is 5

= (5 × 11) / ( 5 × 20)

= 11 / 20

Therefore, the ratio of 55 paise to ₹ 1 is 11 : 20

(d) 500 mL to 2 litres

1000 ml = 1 l

500 ml = 0.5 l

Hence, 500 ml to 2 litres = 0.5 / 2

Here, HCF of 0.5 and 2 is 0.5

= (0.5 × 1) / ( 4 × 0.5)

= 1 / 4

Therefore, the ratio of 500 ml to 2 litres is 1 : 4

NCERT Solutions Class 6 Maths Chapter 12 Exercise 12.1 Question 7

## Find the ratio of the following: (a) 30 minutes to 1.5 hours (b) 40 cm to 1.5 m (c) 55 paise to ₹ 1 (d) 500 ml to 2 litres

**Summary:**

The ratio of the following: (a) 30 minutes to 1.5 hours is 1:3 (b) 40 cm to 1.5 m is 4:15 (c) 55 paise to ₹ 1 is 11:20 (d) 500 mL to 2 litres is 1:4

**☛ Related Questions:**

- In A Year Seema Earns Inr 150000 And Saves Inr 50000 Find The Ratio Of A Money That Seema Earns To The Money She Saves B Money That She Saves To The Money She Spends
- There Are 102 Teachers In A School Of 3300 Students Find The Ratio Of The Number Of Teachers To The Number Of Students
- In A College Out Of 4320 Students 2300 Are Girls Find The Ratio Of A Number Of Girls To The Total Number Of Students B Number Of Boys To The Number Of Girls
- Out Of 1800 Students In A School 750 Opted Basketball 800 Opted Cricket And Remaining Opted Table Tennis If A Student Can Opt Only One Game Find The Ratio Of A Number Of Students Who

visual curriculum