The selling price of the calculator is \(\frac{{11}}{{10}}\) of the cost price. The gain percent is:

The selling price of the calculator is \(\frac{{11}}{{10}}\) of the c

1.	The selling price of the calculator is \(\frac{{11}}{{10}}\) of the cost price. The gain percent is:
A.	10%
B.	20%
C.	25%
D.	30%
Answer» B. 20%