Mathematics, 08.10.2020 03:01 bekahmalcom19

15. Vishal mixes coffee powder that costs $2.50 per kg with coffee powder that costs $3.50 per kg. Given that he sold 20 kg of the mixture at $2.80 per kg
such that he does not make any profit or incur any loss, find the mass of
each type of coffee powder that he uses for the mixture.

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15. Vishal mixes coffee powder that costs $2.50 per kg with coffee powder that costs $3.50 per kg....