Question

25 problems.you have done 20% how many problems have you done

Answer 1

25 problems and you have done 20%

= 20/100 * 25
= 0.2 * 25
= 5
You have done 5 problems out of 25

Answer 2

20% is 1/5 of the 25 problems, so 1/5 of 25 is equal to 5 (25/5=5)