SOLUTION: IF 12 KILOS OF POTATOES AND 6 KILOS OF RICE COST 732 PESO WHILE 9 KILOS OF POTATOES AND 13 KILOS OF RICE COST 923 PESOS, WHAT IS THE PRICE OF EACH PER KILO?

Question 162434: IF 12 KILOS OF POTATOES AND 6 KILOS OF RICE COST 732 PESO WHILE 9 KILOS OF POTATOES AND 13 KILOS OF RICE COST 923 PESOS, WHAT IS THE PRICE OF EACH PER KILO?
Answer by jojo14344(1513) (Show Source): You can put this solution on YOUR website!

1st condition:
----------------------> EQN 1
----------------------> EQN 2
In EQN 1 we get,
-------------------> EQN 3
Subst. EQN 3 in EQN 2:
, Distribute
, Add by getting common denominator "6"
, cross multiply

, Combine similar terms

, cost of Potato per kilo
Go back EQN 3:

, cost of Rice per kilo
In doubt? Go back EQN 1

Via EQN 2:

Thank you,
Jojo
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