The ratio of a basketball player's completed free throws to attempted free throws is 4 to 7. if she completed 12 free throws, find how many free throws she attempted.

a. 3 free throwsc. 21 free throwsb. 7 free throwsd. 4 free throws

Ratio of the free throws completed to attempted free throws is given to be 4:7. This ratio should be equal to the ratio of the next case. Let x be the number of free throws attempted. The proportion takes a form of,

(4 completed / 7 attempted) = (12 completed / x attempted)

Solving for x gives x = 21. Thus, the answer is letter c. which is the second among the choices.