RRB Group D 22-Sep-2018 Shift 1 Solved Paper

From statement 1 and 4 :
R > G > Y
From statement 2 and 3 :
B >_ >_ >_ >_ >_ > P
From 1, 2, 3, 4 and 5 :
R > G > Y > O & B > P
Very clearly, none of the statements explain the relation between the size of orange and black ball. Hence neither statement is sufficient to answer the question.