The selling price of the pool noodle that cost $8 at a mark up of 20% is $9.6
What is mark up?
Mark up is an amount added to the cost price to determine the selling price. The mark up is like the profit of sells.
Therefore,
Mark up price = 20% of 8
Mark up price = 20 / 100 × 8
Mark up price = 160 / 100
Mark up price = 16 / 10
Mark up price = $ 8 / 5
Therefore
selling price = 8 + 8 / 5 = 40 + 8 / 5 = 48 / 5 = $9.6
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