Answer:
- 20% is double the 10% value
- 30% is triple the 10% value
Explanation:
You want to know how you can use 10% of a number to find 20% or 30% of the number?
Double
20% is 2 times 10%. This means 20% of a number is 2 times 10% of the number. You can ...
double the 10% value to get the 20% value
Triple
Similarly, 30% is 3 times 10%, It is also the sum of 10% and 20%. This tells you a couple of ways you can find 30% of a number:
- triple the 10% value to get the 30% value
- add the 10% value and the 20% value to get the 30% value
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Additional comment
5% is half the 10% value, so you can compute the 15% value by adding half the 10% value to the 10% value. These relations are useful for computing tips.
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