Question

lily ordered a set of green and brown pin.she received 35 pins, and 80% of them were green.How many green pins did lily receive?

Answer 1

In total there are 35 pins so that correspound to the 100%, so we can use a rule of 3 to solve it so:

$\begin{gathered} 35\to100 \\ x\to80 \end{gathered}$

So the equation is:

$x=\frac{35\cdot80}{100}=28$

So there are 28 green pins