Question

With the metal  detector we find 70 Roman coins underground,30 are Etruscan,15 are Greek. What is the probability   ,that I draw a Greek coin?​

Answer 1

3/23

Explanation:

Probability (Greek) :

• Number of Greek coins / Total coins
• 15 / 70 + 30 + 15
• 15/115
• 3/23

Answer 2

30*100/70= 42.85% chances that you will draw a Etruscan coin and same way 42.85-100= 57%