Question 21
How many kgs of tea worth Rs. 25 per kg must be blended with 30 kgs of tea worth Rs. 30 per kg so that by selling the blended variety at Rs. 30 per kg there should be a gain of 10%?
Solution
Let the quantity of tea worth Rs.25 be x kg.
Now as per given
(25x+30×30)×110/100=30(30+x)
(275x+9900)=(9000+300x)
300x−275x=900=x=900/25
Therefore, x = 36 kg.
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