In what ratio must rice at ₹42 per kg be mixed with rice at ₹54 per kg to get a mixture worth ₹46 per kg?

Explanation

1. 01

   Alligation: cheaper : dearer = (dearer − mean) : (mean − cheaper).

2. 02

   $(54 - 46) : (46 - 42) = 8 : 4 = 2 : 1$.