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Divide the number you want to percent it on the base number then x 100.
For example: I got in my exam 17/20.
Divvide 17 on 20 then x 100 , which is 85% !!!!
I have a dozen apples and 3 of them are not good. What is the percentage of the good and not good?
The not good : 3/12 x 100 = 25%
The good : 9/12 x 100 = 75%
and so on...
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How do you find 10 percent of 400 without writing a proportion?
Multiply 0.1 by 400 to get 40. This is how you find 10% of 400 without using proportion.
How do you find 16 percent of 120?
Ten percent is 12. One percent is 1.2 - multiplied by 6 = 7.2... 7.2 + 12=19.2 all without the aid of a calculator !
How do you increase by 17 percent?
The way I find percentages is: To find 17% I: Find 10 percent, Then half the 10 percent, to get 5 percent which makes 15%. Then find a 5th of the 5 % and double it to make 17%
What is 249 out of 300 as a percent?
63 percent - without using a calculator !
How do you find 22 percent?
find 10% * it by 2 find 1 percent * it by 2 add together
