Question

find the ratio of 20 minutes to 1 hour

Answer 1

Answer:

Convert 1hour to minutes.

therefore 1 hour =60 minutes

20:60

1:3

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Answer 2

The ratio of 20 minutes to 1 hour is 1 : 3

Given :

The quantities 20 minutes and 1 hour

To find :

The ratio of 20 minutes and 1 hour

Concept :

Ratio : Ratio means comparing of two quantities

The ratio of a number a to another number b ( where b ≠ 0) is a fraction a/b and it is written a : b , the first term a is called antecedent and the second term is called consequent

Solution :

Step 1 of 3 :

Write down the given quantities

The quantities are 20 minutes and 1 hour

Step 2 of 3 :

Express them with same unit

The given quantities are of different unit

We express them with same unit

1 hour = 60 minutes

Step 3 of 3 :

Find the ratio

Hence the required ratio

= The ratio of 20 minutes and 1 hour

= The ratio of 20 minutes and 60 minutes

= 20 : 60

$\displaystyle \sf{ = \frac{20}{60} }$

$\displaystyle \sf{ = \frac{20 \div 20}{60 \div 20} }$

$\displaystyle \sf{ = \frac{1}{3} }$

$\displaystyle \sf{ = 1 : 3 }$

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