Question

A trader gets a profit of 20% by selling coffee by mixing two varieties costing 7 400 and 480 a kg. In what ratio should
he mix them?​

Answer 1

Answer:

Correct option is

C

10% gain

Average CP of Mixed Tea when Mixed in Ratio 3:2

=

3+2

40×3+50×2

=

5

220

=Rs.44

Wen SP=Rs. 48/kg

=

44

4

×100=9.09≈10% gain

Answer 2

Given:

A trader gets a profit of 20% by selling coffee by mixing two varieties

To Find:

In what ratio should traders mix both the varieties?​

Step-by-step explanation:

• Let the mixture  of coffee of two varieties of cost 7400 and 480 be in the ratio of A: B

• According to the given condition in question, the trader gets 20 percent of profit means 100 percent of coffee, and 20 percent after mixing, it will become 120 percent.

        Therefore,

        (7400A+480B)120/100 = (A+B)480

        $(7400A+480B)\frac{6}{5} =(A+B)480$

         $7400A+480B) =(A+B)400$

         $7400A-400A=400B-480B$

         $7000A=-80B$

          $\frac{A}{B} =\frac{-80}{7000}$

         $\frac{A}{B} =-8/700$

•  Hence, the ratio of the mixture should be  -8:700 to get the profit  

          of 20 %