SOLUTION: We have 171 kg rice custing 7 rs/kg.we have rice at 11 rs/kg and 2 rs/kg .then after mixing 11 rs/kg and 2 rs/kg rice. What is quantity of 11 rs/kg rice ..
Algebra ->
Customizable Word Problem Solvers
-> Mixtures
-> SOLUTION: We have 171 kg rice custing 7 rs/kg.we have rice at 11 rs/kg and 2 rs/kg .then after mixing 11 rs/kg and 2 rs/kg rice. What is quantity of 11 rs/kg rice ..
Log On
Question 344406: We have 171 kg rice custing 7 rs/kg.we have rice at 11 rs/kg and 2 rs/kg .then after mixing 11 rs/kg and 2 rs/kg rice. What is quantity of 11 rs/kg rice .. Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = kg of 11 rs/kg rice needed
Let = kg of 2 rs/kg rice needed = cost of 11 rs/kg rice = cost of 2 rs/kg rice = cost of 7 rs/kg rice
given:
(1)
(2)
Multiply both sides of (1) by
and subtract (1) from (2)
(2)
(1)
The quantity of 11 rs/kg rice needed is 95 kg
And, from (1):
check answer:
(2)
(2)
OK
