6. 5Kg of
rice at Rs 6 per Kg is mixed with 4 Kg of rice to get a mixture costing Rs 7
per Kg. Find the price
of
the costlier rice?
Solution: Using the cross method:
rice at Rs 6 per Kg rice at Rs x per Kg
Mean price Rs 7 per Kg
5
4
x-7:1=5:4
4x-28
= 5
4x=33=>x=Rs
8.25.
Therefore
price of costlier rice is Rs 8.25 per Kg