Question

A concave mirror produces three times magnified real image of an object placed at 10 centimetre in front of it. Where is the was located?

Answer 1

object will be located between focus and centre of curvature

Answer 2

we get a real and magnified image beyond center of curvature when the object is placed between focal point and center of curvature in a concave mirror

hence the object is placed between focus and center of curvature.