Question

Express as a ratio. "15 minutes is to 1 hour".
Choose an answer?
- 15 : 1
- 15 : 60 or 1 : 4
- 1 : 15
- 60 : 15 or 4 : 1

Answer 1

Answer:

2 option is the correct 15:60 or 1:4

Answer 2

Given:

Two quantities 15 minutes and 1 hour.  

To Find:  

The ratio of the two quantities is?  

Solution:  

1. The ratio of two quantities a and b is calculated by using the formula (a/b). The ratio of a and b is denoted as a:b.  

=> a:b simply implies a/b.  

2. The given quantities are 15 minutes and 1 hour. The units of the two quantities are different. Hence, we have to make the units similar.  

=> The value of 1 hour is 60 minutes,

=> The ratio of  15 minutes and 1 hour is,  

=>  15 minutes / 1 hour,  

=> 15 minutes / 60 minutes, ( Units are same hence operation can be performed  ).  

=> 1.4.  

3. 15 minutes / 1 hour = 15:60 (OR) 1:4

Therefore, the ratio of 15 minutes / 1 hour is 1:4 (OR) 15:60. Option 2 is the correct answer.