Question

A bag contains red and blue marbles given that 17/20 of the marbles are red what percent of the marbles are blue

Answer 1

3, because if 17 of the marbles are red, you need to subtract them.

20 - 17 =3

heres a easier way of doing this problem:

20
- 17
----------
3

hope this helped and you understood what ive explained.

:D