Sahil and Sarthak are partners in a firm, and share profits and losses equally. Their capital contribution was ₹1,00,000 and ₹2,00,000, respectively. In addition, Sahil provided a loan of ₹70,000 to the firm. The firm has incurred a loss of ₹50,000 in the current year. Calculate the amount of interest on the loan given to Sahil.
[0.88 marks]