My bag can carry no more than ten books. I must carry at least one book each of management, mathematics, physics and fiction. Also, for every management book, I must carry two or more fiction books, and for every mathematics book, I must carry two or more physics books. I earn 4,3,2 and 1 points for each management, mathematics , physics and fiction book respectively, I carry in my bag. I want to maximize the points I can earn by carrying the most appropriate combination of books in my bag. The maximum points that I can earn are :
Possible combinations (No. of books of each subjects)
1(4)
1(3)
1(2)
1(1)
Compulsory combination
2 Fiction (2)
2 physics (4)
none
none
Thus, 2 more books of Physics (4 points) can be carried along with the above said combination by which I can earn a total of 22 points.
Q. No. 20:
A girl counted in the following way on the fingers of her left hand : she started by calling the thumb 1, the index finger 2, middle finger 3, ring finger 4, little finger 5 and then reversed direction calling the ring finger 6, middle finger 7 and so on. She counted upto 1994. She ended counting on which finger ?