A shopkeeper mixes two kinds of flour, one costing Rs35 per kg and the other Rs22.50 per kg, so that the price of the mixture is Rs27.50 per kg. The ratio of first kind of flour to that of the second must be:

A shopkeeper mixes two kinds of flour, one costing Rs35 per kg and the

1.	A shopkeeper mixes two kinds of flour, one costing Rs35 per kg and the other Rs22.50 per kg, so that the price of the mixture is Rs27.50 per kg. The ratio of first kind of flour to that of the second must be:
A.	4 : 3
B.	0.127777777777778
C.	2 : 3
D.	0.126388888888889
Answer» D. 0.126388888888889