There would be 10% loss if a toy is said at Rs. 10.80 per piece. At what price should it be sold to earn a profit of 20%?

A. Rs. 12
B. Rs. 12.96
C. Rs. 14.40
D. None of these
Explanation:
90 : 10.80 :: 120 : x
X = (10.80 ×120)/90 = 14.40
Hence, the toy must be sold for Rs. 14.40