Solution:
For volumes > BEP, all contribution of (Rs.650 – 240 = Rs.410/unit) goes into profit. Thus the additional volume needed is Rs.10,250 / Rs.410/unit = 25 units.
For volumes > BEP, all contribution of (Rs.650 – 240 = Rs.410/unit) goes into profit. Thus the additional volume needed is Rs.10,250 / Rs.410/unit = 25 units.