How many kg of Basmati rice costing Rs 45/kg should a shopkeeper mix with 18kg of ordinary rice costing 22/kg so that he can get a profit 20% of on selling the mixture at 42/kg.
(A) 20.5kg
(B) 22.8kg
(C) 23.4kg
(D) 24.6kg
(E) None of these
Answers
Answered by
2
Answer:
(C)
Step-by-step explanation:
Do 42-18 ans is 24 -1 which is 23
Answered by
8
Answer:
Step-by-step explanation:
Basmati rice B = 45/kg (takes Y kg)
Ordinary rice O = 22/kg (takes 18 kg)
Mixture: ‘Y’ kg + 18 kg mixed to get:
profit of 20 % ; selling price 42/kg ; What is cost price?
SP = CP + CPx20/100 = 42
CP (1+20/100) = 42
CP (120/100) = CP (6/5) = 42
CP = 42x5/6 = 35
Now going back to the first step:
The cost price of the mixture is 35/Kg
Total quantity is Y kg of basmati (₹ 45/Kg)+ 18 kg of ordinary rice (₹ 22/Kg)= 18+Y kg
(22x18 + 45xY)/(18+Y) = 35
Solving for Y,
396+45Y=630+35Y
10Y=234 So Y = 23.4 Kg
Similar questions