6. An electrical goods shop reduces all of its price by 20% in a sale.
a) Find the sale price of a television originally priced at £350.
b) Find the original price of a radio that is £68 in a sale.
a) Find the sale price of a television originally priced at £350.
b) Find the original price of a radio that is £68 in a sale.
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a) £350 * (100% - 20%) / 100% = £350 * 0.8 = £280 -- sale price
b) £68 / (100% - 20%) * 100% = £68 / 0.8 = £85 -- original price