maths

out of 10 litre a milkman sells some milk at the rate of Rs 15 perlitre and some at the rate of 12 per litre . He gets Rs 141 on selling it. Find the quantity of milk he sold at each rate.

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asked by stefan
  1. 15x + 12(10-x) = 141

    solve for x to get the amount sold at 15

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    posted by Reiny
  2. how to do pls help me but see that it is a ssc sum

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    posted by lawphina
  3. 15x + 120 - 12x = 141
    15x - 12x = 141 - 120
    3x = 21
    x = 21/3
    x = 7
    is it right but it is told of 10litres

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    posted by va
  4. you have found x. But how does that help you answer the question asked?

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    posted by Steve

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