A person involved in a murder is brought to you for determination of age since the defence attorney wants him to be treated as a minor. The results of Xrays are as given below:rnrn1) All the epiphyses of the elbow have fusedrn2) All the epiphyses of the shoulder joint have fusedrn3) The epiphyses of the inner end of the clavicles has fusedrn4) The ramus of pubis and ischium has fused rnrn rnWhat is the approximate age of this person assuming that it is a male?