Question:
There are 25 students in the class. Ten students have a sports practice after school. What is the ratio of students that do have practice, to those that do not?
Answer:
Ratio of students that do have practice, to those that do not is 2 : 3
Solution:
Total number of students = 25
Students those practice sports = 10
Therefore,
Student who do not have sports practice = 25 - 10 = 15
The required ratio is given as:
Ratio = Students those practice sports : Student who do not have sports practice
Ratio = 10 : 15
Reduce the ratio to lowest term by dividing by5
Ratio = 2 : 3
Thus ratio of students that do have practice, to those that do not is 2 : 3
Question:
A table measures 3 feet across. How many inches is this?
Answer:
The table measure in inches is 36 inches
Solution:
Table measure in feet = 3 feet
We have to convert 3 feet to inches
Use the conversion factor
1 feet = 12 inches
Therefore, 3 feet = 3 x 12 inches = 36 inches
Thus the table measure in inches is 36 inches
Question:
If every pound is sixteen ounces, how many ounces does a two-pound textbook weight?
Answer:
The weight of 2 pound book in ounce is 32 ounces
Solution:
Given that, Every pound is sixteen ounces
Therefore, we say,
1 pound = 16 ounce
We have to find weight of 2 pound book in ounce
Convert 2 pound to ounce
2 pound = 2 x 16 ounces = 32 ounces
Thus weight of 2 pound book in ounce is 32 ounces