Question

Draw a bar model that shows a pen is 4 times as long as an eraser that is 1 1/3 inches long.

Answer 1

Since, the length of one eraser =
`1(1)/(3)\text{ Inches}=(4)/(3)`

Also, the length of one pen = 4 × the length of one eraser

`\text{The length of one pen} = 4* (4)/(3)`

`=(16)/(3)=5(1)/(3)\text{ inches}`

Thus, the length of one pen is 16/3 inches.

Solution by the bar model :

Take 4 boxes representing the
`1(1)/(3)\text{ inches}`,

Add the total value of the boxes

`= 1(1)/(3)+1(1)/(3)+1(1)/(3)+1(1)/(3)`

`= 1 + (1)/(3)+1 + (1)/(3)+1 + (1)/(3)+1 + (1)/(3)`

`=4 + (4)/(3)`

`=4 + 1 + (1)/(3)`

`= 5 + (1)/(3)`

`=5(1)/(3)\text{ inches }`