Which number is 20 percent less than 45 percent of 600?
2021
Which number is 20 percent less than 45 percent of 600?
Answer: B. 216 — Solution: Find 45% of 600, then reduce that result by 20%. Calculate 45% of 600: 0.45 × 600 = 270. Find 20% of 270: 0.20 × 270 = 54. Subtract to get the final…
- A.
224
- B.
216
- C.
230
- D.
28
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Correct answer: B
Solution: Find 45% of 600, then reduce that result by 20%.
Calculate 45% of 600: 0.45 × 600 = 270.
Find 20% of 270: 0.20 × 270 = 54.
Subtract to get the final number: 270 − 54 = 216.
Alternative method:
After finding 45% of 600 = 270, multiply by 0.8 (which is 100% − 20%) to get 270 × 0.8 = 216.
Answer: 216
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