Answer:
59% of the original price
Explanation:
First you have to find the discounted total price:
($215)(0.7) + ($250)(0.5) = $275.5
The 0.7 here is because the $215 bike has 30% of the original price removed so the discounted price is 70 percent of the original. Likewise for the $250 bike.
Now the original price is 215 + 250 = $465
And the discounted price divided by the original is 275.5/465 = 0.592473
Rounded is 59%. They would pay 59% of the original price.