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ICSE Class 8 Answered

A mixture of certain quantity of milk with 16 litres of water is worth 90 paise per litre. If pure milk be worth RS 1.08 per litre ,how much mik is then there in the mixture
Asked by mkp400 | 17 Dec, 2017, 12:36: PM
answered-by-expert Expert Answer
begin mathsize 16px style Let space the space quantity space of space milk space be space straight x space litre.
Cost space of space 1 space litre space milk equals Rs. space 1.08 equals 108 space straight P
Then comma space we space have
left parenthesis straight x plus 16 right parenthesis cross times 90 equals straight x cross times 108 plus 16 cross times 0 space space left parenthesis cost space of space water space is space 0 right parenthesis
rightwards double arrow 90 straight x plus 16 cross times 90 equals 108 straight x
rightwards double arrow 18 straight x equals 16 cross times 90
rightwards double arrow straight x equals fraction numerator 16 cross times 90 over denominator 18 end fraction equals 80 space
Thus comma space the space quantity space of space milk space is space 80 space straight L.
end style
Answered by Rashmi Khot | 17 Dec, 2017, 09:11: PM
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