Q. 
Rajesh sold his electronic typewriter at ₹ 7500 which he bought at ₹ 8000. Calculate his profit or loss percentage. 
A. 6.66% loss 

B. 6.66% profit 

C. 6.25% profit 

D. 6.25% loss 
CP = ₹ 8000, SP = ₹ 7500.
Therefore, Loss = ₹ 8000  ₹ 7500 = ₹ 500
Loss % = $\frac{500}{8000}\times 100=6.25\%$