help 2 work out each percentage eg 20 as a percentage of 40 or 25 as a percentage of 40?

Answer 1

For 20 as a percentage of 40, it is (fairly obviously) 50%, but to get it you do 20 divided by 40, and then multiply the answer by 100.

Thus for 25, its 25 divided by 40 times 100 = 62.5

Answer 2

When you do a percentage question, you call the starting point or thing that represents a whole 100%.

40 represents 100%

20 represents 100 x 20/40 %

........(you copy the 100 above, multiply by the 20 (whose percentage you're trying to find) and divide by the 40 which represents 100%.

20 represents 100 x 1/2 %

20 represents 50%

SECOND PART

40 represents 100%

25 represents 100 x 25/40 %

........................100 x 5/8 %

25 represents 62.5%

Always make the original value at each stage of the sum represent 100%

Answer 3

20 as a percentage of 40 is half or 50%

Type 20 divide by 40 into a calculator and you will get 0.5

Multiply by 100 and 0.5 will become 50 - this is your percentage.



25 divide by 40 gives a slightly larger decimal answer of 0.625.

Multiply by 100 to get 62.5 this is your percentage of 62.5%

Answer 4

divide 40 into 100 = 2.5
times 20 by 2.5 = 50

answer 50 %

divide 40 into 100 = 2.5

times 25 by 2.5 = 62.5

answer 62.5%

Answer 5

Simple answer:

If your in a test and your mark is say 23/40

You simply divide the top number by the bottom number then times that answer by 100 to get it as a percentage.

Answer 6

Find out what 10% is (10% of 40 must be 4).
20% must be 2 lots of 10%(4).
2 lots of 4 is 8.

25% would be 2 1/2 lots of 4...that is 10.



Example 10% of 90 is 9 so 20% of 90 must be 18.

Answer 7

(20/40)*100% = 50%

(25/40)*100% = 62.5%