Question

20 is 50% of what?

Answer 1

40

Answer 2

40

Answer 3

40/2 = 20

Answer 4

40 x 0.5 = 20

Answer 5

what are the step i need to do?

Answer 6

If you divide something in half you divide it by two. Therefore 50% = 0.5 so you can then multiply 20 x 2 to get the correct answer 40.

No steps you just need to know half of 40 is 20. The question is not really formula based just requires some thought. You just need to know what 0.5 x 40 = 20