Question

Zoe bought a bike on sale at 15% off the original price.

The original price was $420.
How much did Zoe pay for the bike?

Answer 1

`(15)/(100)*420=0.15*420=63 \\ \\ So \ 420 - 63 =`
$
`357`

Answer 2

`\$420` original prize

`15\%` discount

`100\%-15\%=85\%`

`85\%=0.85`

`\$420*0.85=\$357`