Question

Which answer choice correctly identifies the missing information in the problem?Joey and Kirk are in the six grade. Kirk is 5‘4“ tall. Joey is 4‘8“ tall. How much taller is Kirk than Joey?A) The missing information is there is 12 inches in 1 footB) The missing information is how old is Joe and Kirk areC) The missing information is Joey and Kirk’s last name D) The missing information is who is taller, Joey or Kirk

Answer 1

Step 1

Given;

`\begin{gathered} \text{Kirk is 5f}eet\text{ and 4 inches tall} \\ \text{Joey is 4f}eet\text{ and 8 inches tall} \end{gathered}`

Required; To find the missing information based on the options.

Step 2

Convert 5feet and 4 inches to inches as well as 4feet and 8 inches to inches.

`\begin{gathered} 1\text{ foot = }12\text{ inches} \\ \text{Therefore,} \\ 5\text{ f}eet\text{ = 5}*12=60\text{ inches} \\ 5\text{ f}eet\text{ 4 inches = 60 + 4=64 inches} \end{gathered}`
`\begin{gathered} 4\text{ fe}et\text{ = 12 }*4\text{ = 48inches} \\ 4feet\text{ and 8 inches=48+8=56inches} \end{gathered}`

Step 3

Find how much taller Kirk is than Joey

`\begin{gathered} \text{Kirk's height- Joey's height= 64-56=8 inches} \\ Kirk\text{ is taller than Joey by 8 inches} \end{gathered}`

If we choose to convert this to feet

`Kirk\text{ is taller than Joey by }(8)/(12)\text{feet}=\frac{2}{3\text{ }}feet`

Step 4

Find the missing information

`The\text{ missing information is that there is 12 inches in 1 foot}`

Hence, the answer is Option A