What is the total weight of six boxes, each of equal weight? Which statement(s) suffice? Statement 1: One-third of each box's weight is 2 kg. Statement 2: The total weight of four boxes is 12 kg more than the total weight of two boxes.

1. From statement 1: each box = 3 × 2 = 6 kg, so six boxes = 36 kg; sufficient alone. 2. From statement 2: 4w − 2w = 12, so 2w = 12, w = 6 kg, six boxes = 36 kg; sufficient alone. 3. Hence either statement alone is sufficient. _Source: RRB Group D CEN-02/2018 PYQ, Q.73._