The number was increased by 10%, and then by another 20. By what percentage did the number 100 increase.
| April 8, 2021 | education
In order to solve this task, first we need to find how much the percentage has become, after 10% has been added to the number 100. Let’s make an example:
100 + 10 = 110%;
Let’s find how many percent are 20% of 110%. To do this, let’s make a proportion:
110 – 100%;
x – 20%;
x = 110 * 20: 100 = 22;
110 + 22 = 132.
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