The cost of four rolls, six samuchas and three loaves of bread is Tk. 91. The cost of two rolls, three samuchas and one loaf of bread is Tk. 39. What is the cost of one loaf of bread?

4 rolls + 6 samuchas + 3 loaves of bread cost Tk. 914    "    + 6       "            + 2      "      "   "          "   Tk.78  প্রদত্ত উপাত্তের  দ্বিগুণ করে       বিয়োগ করে                                    1 loaf of bread cost   Tk. 13;