What is 20% of 600?
The answer is 120.
Why One Hundred and Twenty on Six Hundred
Six hundred is a round multiple of a hundred and of fifty, so several mental paths converge on the same 120. That redundancy is useful: if one route feels awkward, another usually feels natural on a napkin or a whiteboard.
The base is 6 × 100. Since twenty percent of a hundred is twenty, six copies of that slice stack to one hundred and twenty without touching a calculator. If you prefer thinking in halves and doubles, ten percent is sixty and the second sixty completes the fifth.
Six hundred also factors as 3 × 200. Each two-hundred block carries 20% of 200 = 40, and three forties sum to 120—a neat check when the story behind the number is “three equal chunks of two hundred” rather than hundreds and fifties.
Mental Maths Shortcuts for 20% of 600
Fastest for many people: 600 ÷ 5 = 120.
- 10% of 600 = 60; double → 20% = 120.
- 20% of 500 = 100; add 20% of 100 = 20 → 120.
- 20% of 400 = 80; add 20% of 200 = 40 → 120.
- 300 + 300 = 600: 20% of 300 = 60, so 60 + 60 = 120—handy when the workload or invoice is already grouped in halves of three hundred.
From 25% of 600 = 150, subtract 5% of 600 = 30 to land on one hundred and twenty—handy when quarters are already in your head from pricing or tip-style maths.
Real-World Examples
Example 1: Twenty percent off a £600 ticket or fee
The markdown is £120 and you pay £480 if nothing else stacks. Quote 120 when asked only for the percentage of six hundred.
Example 2: Six-hundred-unit batch
If a 20% holdback applies to quality or compliance, 120 units are reserved and 480 are cleared under a strict reading—again, “off” language flips which number is the headline.
Example 3: Budget line on a £600 subtotal
Allocating 20% to one cost centre means £120 for that line and £480 notionally elsewhere, unless the policy defines the percentage differently.
Example 4: Tenfold scale check
20% of 6000 is 1200. If you see 120 or 12000 on the scaled row, revisit whether you moved the decimal once or twice.
Common Mistakes
- Answering £480 when asked only for twenty percent of £600—four hundred and eighty is the amount left after a twenty-percent reduction.
- Multiplying 20 × 600 without dividing by a hundred → 12000.
- Confusing 20% of 600 with “600 is 20% of what?” (600 ÷ 0.2 = 3000).
- Using 600 ÷ 20 as a percentage shortcut—it is not the fifth.
- Treating 0.2% of six hundred as twenty percent.
Related Links
FAQ
What is 20% of 600?
20% of 600 is 120.
How do you calculate 20% of 600 quickly?
Divide 600 by 5 or multiply 600 by 0.20. Both methods give 120.
What is 600 minus 20%?
Subtract the 20% amount of 120 from 600 and the remaining total is 480.
Why is dividing 600 by 5 the same as finding 20%?
Twenty percent is exactly one fifth, so 600 ÷ 5 and 0.2 × 600 are the same operation in different clothes—both yield 120.