In what proportion may 3 kinds of tea of prices at RM 50, RM 70 and RM 80 per kilogram (kg) be mixed to produce a mixture worth RM 60 per kg?​

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Step-by-step explanation:

Use kind words only

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sorry can't

step-by-step explanation:

i googled though and something came up but it was in science langueage not common english sooo