If we consider John’s first statement as true and second statement as false, then John won Gold Medal and Johny won silver medal But th is make Johny’s both statements false. Now, we consider John’s first statement as false and second statement as true. So. according to this, John won silver medal Johny won Bronze Medal and Janardan won Gold Medal. Now, from above, Johny’s firs t statement is true and second statement is false. Also Janardan's first statement is false and second statement is true.