Total amount with the lawyer = Rs. 250000
First son's inheritance = 30% of 250000 = (30/100) × 250000 = 7500000/100 = Rs. 75000
Second son's inheritance = 45% of 250000 = (45/1000) × 250000 = 11250000/100 = Rs. 112500
Third son's inheritance = 25% of 250000 = (25/100) × 250000 = 6250000/100 = Rs. 62500