Answer:
Profit % on skates = 8.7 %
Step-by-step explanation:
<em><u>Step 1 : Find cost price of skates</u></em>
Cost price of helmet = £45
Let cost price of skate be = x
Selling price = £224
Cost price = (x + 45)
Total profit % = 40%
Total cost price = 45 + 115 = £160
<em><u>Step 2 : Selling price of Helmet</u></em>
Cost price of Helmet = £45
Let selling price of helmet be = y
Profit % of helmet = 120 %
<em><u>Step 3 : Selling price of skates</u></em>
Total selling = selling price of helmet + selling price of skates
224 = 99 + selling price of skates
224 - 99 = selling price of skates
125 = selling price of skates
<em><u>Step 4 : Profit percentage on skates</u></em>
Cost price of skate = £ 115
Selling price of skate = £ 125