AskQ logo

STUCK ON HOMEWORK?

ASK FOR HELP FROM OUR KIASUPARENTS.COM COMMUNITY!

Question

Answer

(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

0 Replies 0 Likes