Aakash, Rahul, and Sunil went on a vacation and agreed to split the costs evenly. During their trip Aakash paid 105 Rahul paid 175. in order to share costs equally. Aakash gave Sunil t rupees, and Rahul gave Sunil d rupees. What is t-d? A) 15 (B) 20 (C) 30 (D) 35