Answer:
Snowboard can be purchased for the lowest price from Store C offering 40% discount.
Explanation:
We need to compare discounts of 3 stores and find the store selling snowboard lowest of them.
Store A: Sale of 30% off and a successive discount of 10% off.
The formula used for successive discount is = (x+y - xy /100)%
here x= 30 and y =10 so total discount is:
Total discount = ( 30 +10 - (30*10)/100)%
= (40 - 300/100) %
= (40 -3) % = 37%
Original price = $189.59
Discount offered = 37% of $189.59
= 37/100 * 189.59 = $70.15
Selling Price = Original price - Discount offered
= $189.59 - $70.15
= $ 119.44
Store B: Sale of 20% off and a successive discount of 20% off.
The formula used for successive discount is = (x+y - xy /100)%
here x= 20 and y =20 so total discount is:
Total discount = ( 20 +20 - (20*20)/100)%
= (40 - 400/100) %
= (40 -4) % = 36%
Original price = $189.59
Discount offered = 36% of $189.59
= 36/100 * 189.59 = $68.25
Selling Price = Original price - Discount offered
= $189.59 - $68.25
= $ 121.34
Store C: Sale of 40% off.
Original price = $189.59
Discount offered = 40% of $189.59
= 40/100 * 189.59 = $75.84
Selling Price = Original price - Discount offered
= $189.59 - $75.84
= $ 113.75
So, Store A Sale price is: $ 119.44
Store B Sale price is: $ 121.34
and Store C Sale price is: $ 113.75
So, Comparing them we found that snowboard can be purchased for the lowest price from Store C offering 40% discount.