The number of American hotcakes sold by bakery A is ______ % more than the…
2024
The number of American hotcakes sold by bakery A is ______ % more than the number of Swedish hotcakes sold by bakery C.
Answer: B. 80 — Concept: When one quantity X is described as p% more than another quantity Y, the excess X − Y is always measured against the base Y, so p = (X − Y) ÷ Y ×…
- A.
20
- B.
80
- C.
180
- D.
40
Show answer & explanation
Correct answer: B
Concept: When one quantity X is described as p% more than another quantity Y, the excess X − Y is always measured against the base Y, so p = (X − Y) ÷ Y × 100. The quantity that follows the words “more than” is the base. Two reading rules complete the concept for this table: the three varieties together make up the row total, and since American sales are always greater than Cornmeal sales, American = Cornmeal + the listed difference.
Application: Build the two quantities the question compares, then apply the formula.
Bakery A: Cornmeal = 320 and the listed difference = 40, so American = 320 + 40 = 360.
Bakery C: Cornmeal = 360 and the listed difference = 80, so American = 360 + 80 = 440.
Bakery C: Swedish = Total − Cornmeal − American = 1000 − 360 − 440 = 200. This is the base of the comparison.
Excess = American of A − Swedish of C = 360 − 200 = 160.
Required percentage = 160 ÷ 200 × 100 = 80.
Bakery | American hotcakes | Swedish hotcakes |
|---|---|---|
A | 360 | 520 |
C | 440 | 200 |
Cross-check: Raising 200 by 80% gives 200 + 160 = 360, which is exactly bakery A's American sale, so the figure is consistent. Contrast this with the “percentage of” reading: 360 is 180% of 200, but “percentage more” counts only the part above the base, so the base's own 100% is never included.