Office manager paid 225.20 $ for 16 post-it notes. If some post-it notes cost 12.50$ each and post-it notes containing company logo each cost 22.4% more. How many post-it notes containing the company logo were bought? A) 3 B) 15 C) 8 D) 7 E) 9 Answer: E 12.50*1.224 = 15.3$ more was paid for the post-it notes containing company logo If post it notes that cost 15.30 $ = x, than post-it notes that cost 12.50$ = 16-x 15.30X +12.50(16-X) = 225.20 15.30X + 200 - 12.50X = 225.20 2.80X = 25.20 X = 25.20/2.80 = 9
1️⃣ Regular Post-it: $12.50
2️⃣ Logo Post-it: $12.50 × 1.224 = $15.30 (since 22.4% more = $12.50 × 0.224 = $2.80 extra → $15.30 total)
3️⃣ Total bought: 16
Equation:
15.30x + 12.50(16 − x) = 225.20
→ 15.30x + 200 − 12.50x = 225.20
→ 2.80x = 25.20
→ x = 25.20 ÷ 2.80 = 9
✅ Answer: E (9 Post-it notes with logo)
1️⃣ Regular Post-it: $12.50
2️⃣ Logo Post-it: $12.50 × 1.224 = $15.30 (since 22.4% more = $12.50 × 0.224 = $2.80 extra → $15.30 total)
3️⃣ Total bought: 16
Equation:
15.30x + 12.50(16 − x) = 225.20
→ 15.30x + 200 − 12.50x = 225.20
→ 2.80x = 25.20
→ x = 25.20 ÷ 2.80 = 9
✅ Answer: E (9 Post-it notes with logo)
