Given details are,
Initial investment by Aman = Rs.100000
In first year = incurred a loss of 5%
In second year = earned a profit of 10%
In third year = earned a profit of 12 %
By using the formula,
A = P (1 + R/100)
x = 100000 (1 – 5/100) (1 + 10/100) (1 + 12/100)
= 100000 (95/100) (110/100) (112/100)
= 100000 (0.95) (1.1) (1.12)
= 117040
∴ Aman’s net profit for entire three years is 117040 – 100000 = Rs 17040