The correct option is D Rs. 1.5
The cost price of 1 apple =(110)th of a rupee or Rs. 0.10.
As Sam wishes to make a profit of 25%, his selling price per apple will be 0.10+25% of 0.10= Rs. 0.125.
If the selling price of 1 apple is Rs. 0.125, then the selling price of a dozen apples =12×0.125 = Rs. 1.5