SOLUTION: Mr olanrewaju bought tea at #2.20 per kg and mixed it with twice as much tea which he bought at #2.00 per kg.He sold the mixture at #2.40 per kg gaining #40.00 in the transaction.F

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Question 709263: Mr olanrewaju bought tea at #2.20 per kg and mixed it with twice as much tea which he bought at #2.00 per kg.He sold the mixture at #2.40 per kg gaining #40.00 in the transaction.Find how many kg of each kind of tea he bought?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Bought, and later sold x and 2x kg quantities.

Spent:
x*2.20+2x*2.00
=6.20x

Sold for Revenue:
(x+2x)2.40
=3x%282.40%29

In selling, he gained 40.00 pounds profit:
highlight%283x%282.40%29-6.20x=40.00%29
7.2x-6.2x=40
1.0*x=40
.
highlight%28x=1.00%29 kg. the first tea type
highlight%282x=2.00%29 kg. the second tea type