C.P = Rs. 2400, Loss% = 10%
*.P = ?
.P = Rs. 2160
∴ When the loss percent is 10% .P. is Rs. 2160
C.P = Rs. 2400
profit percent = 15%
*.P = ?
*.P. = Rs. 2760.
When the profit percent is 15%, the *.P. is Rs. 2760.
Total C.P. of two fans is 2400 + 2400 = Rs. 4800.
Total *.P. of two fans is 2160 + 2760 = Rs. 4920.
Total SP > Total C.P
∴ Total profit = Total *.P – Total C.P = 4920-4800 Profit = Rs. 120.