Question

Anna can knit a scarf in one and two third hours. How many scarves can she knit in 4 hours

Answer 1

`\text{ Anna can knit 2 scarves in 4 hours.}`

Explanation:

This situation can be solved by proportional relationships if Anna can knit a scarf in one and two-thirds hours:

`(1)/(1(2)/(3))=(x)/(4)`

Use cross multiplication and solve for x.

`\begin{gathered} 4=(3+2)/(3)\cdot x \\ 4=(5)/(3)x \\ 12=5x \\ x=(12)/(5)\text{ }\approx2 \end{gathered}`