Related Post: 5 3 2 X 5 3 2 X 4 5 3 2 X 10 5 3 2 X 7 5 2 3 X )= 4x 10 5 2 3 X 13 5 2 3 X 4 1 7 5 3 X 2 12 4 5 3 X 2 )= 15 5 2 3 X 20