Question

How much tea at rs. 4 a kg should be added to 15 kg of tea at rs. 10 a kg so that the mixture be worth rs. 6.50 a kg ?

Answer 1

Step-by-step explanation:

ans 35 kgs

the prblm is done based on alligation

Answer 2

21 kg of tea should be added to 15 kg.

Step-by-step explanation:

Since we have given that

Cost price of tea = Rs. 4

Cost price of second type of tea  = Rs. 10

cost price of mixture = Rs. 6.50

So, using the mixture and allegation, we get that

           4                       10

                      6.50

--------------------------------------------------

       10 - 6.50      :          6.50 - 4

           3.5           :                2.5

             7             :                 5

so, according to question, it becomes,

$\dfrac{7}{5}=\dfrac{x}{15}\\\\x=21\ kg$

Hence, 21 kg of tea should be added to 15 kg.

# learn more:

How many kilograms of tea worth Rs.72/ kg should be mixed with 10 kg of tea worth Rs.90/kg to produce a mixture that will cost Rs. 78/ kg.?

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