A fund of ₹12,00,000 was raised from three donors. The first gave 40% of the fund, the second gave 25% more than the first, and the third gave the rest. What per cent of the fund did the third donor give?

Work in per cent of the fund. First = 40. Second = 25% more than the first = $40\times 1.25=50$. Third = 100 - 40 - 50 = 10%. Check in rupees: 4,80,000 + 6,00,000 + 1,20,000 = 12,00,000. 35% reads '25% more than the first' as '25% of the fund' and does 100 - 40 - 25. 5% adds the 25 to the 40 as percentage points, making the second donor 65%. 50% is the second donor's share, quoted in place of the third's.