Question

Q-2 How many kilograms of salt worth 5$ per kg should be mixed with 50 Kg of sugar worth
20$ per kg to produce a mixture of 23$ per kg?​

Answer 1

Answer:

The merchant makes 20% profit, which means that the selling price = cost price + 20% of cost price, i.e. SP = 120% of CP = 1.2 CP

The merchant is selling the mixture at Rs.48 / Kg

Therefore, cost price of the mixture is equal to 481.2 = Rs.40 / Kg

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Thus 2 Kgs. of salt at Rs.35 / Kg should be mixed with 1 Kg. of salt costing Rs.50 / Kg.

i.e. 20 Kgs. of salt that costs Rs.50 per Kg should be mixed with 40 Kgs. Rs.35 / Kg.