SOLUTION: The ratio of good guys to bad guys was 12 to 5. if there were 72 good guys, how many bad guys were there? (plz help)

Question 1199257: The ratio of good guys to bad guys was 12 to 5. if there were 72 good guys, how many bad guys were there? (plz help)
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39618)   (Show Source): You can put this solution on YOUR website!
PROPORTION. VERY SIMPLE.

Answer by ikleyn(52797)   (Show Source): You can put this solution on YOUR website!
.

        If you do not know proportions (in case if you did not
        study them yet), you can use this reasoning.

72 good guys comprise 6 groups of 12 good guys, each.

Hence, there are 6 groups of 5 bad guys on the scene, each.

6 * 5 = 30,   so the ANSWER   is:     there were 30 bad guys.

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