Help me to solve this problem.very confusing
STUCK ON HOMEWORK?
ASK FOR HELP FROM OUR KIASUPARENTS.COM COMMUNITY!
Question
Answer
BigDevil
(a) For every 5 buns, she only had to pay for 4.
Percentage discount for the buns -> 20%
(b)
Cost of Muffin -> 1u
Cost of Cookie -> 2u
Amount spent on 120 Muffins -> 120 × 1u = 120u
Amount spent on 30 Cookies -> 30 × 2u = 60u
Amount spent on 10 buns -> 120u ÷ 3 = 40u
Now remember that she actually paid for only 8 buns (since 2 of them were free),
Cost of each bun -> 40u ÷ 8 = 5u
Total amount spent = 50% of money = 120u + 60u + 40u = 220u
With the remaining 50% of money she had, she could buy 220u ÷ 5u = 44 buns
Number of free buns -> 44 ÷ 4 = 11