Final answer:
To calculate the sale price of the shirt, the discount amount of 2/7 of the original price is first found and then subtracted from the original price, resulting in a sale price of £65.
Step-by-step explanation:
The question asks how much a shirt will cost during a sale if its original price is £91 and the sale offers a reduction of 2/7 of that price. To find the sale price, we must first determine the amount of the discount by dividing the original price by 7 and then multiplying by 2. This is the percentage of the price that will be reduced.
First calculate the discount: (2/7) × £91 = £26. Then, subtract the discount from the original price: £91 - £26 = £65. So, the shirt's price during the sale is £65.
Final answer in 2 lines: The discount is £26, thus the sale price of the shirt is £65. Option A is the correct choice.