
Find P percent of AFormula for calculating P percent of number A.
For the derivation of this equation using the method of solving problems with percentage
Examples of solving problems: percent from given numberExample 1. What is 5% of 40.
Solution:
Answer: 5% of 40 is 2. Example 2. In a class is 30 students 10% of them is girls. How many girls in the class?
Solution.
Answer: in class is 3 girls. Example 3. Dad put a deposit 400,000$ at 12% per annum. How much profit will receive a family in a year?
Solution.
Answer: profit is 48,000$.
Percent
Percent Definition. Main information
Decimal to Percent. Percent to Decimal
The method of solving problems with percentage
The most common types of problems with percent:
Find P percent of A
B is P percent of what?
B is what percent of A?
Find the number which is greater (less) than a given number by P percent.
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