if milk cost 17 3/4 per liter find the cost of 7 2/5
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let the cost of 1 l be x
x*3/4=17,3x/4=17,3x=68,x=68/3=22.66
2/5*22.6=44.6/5
x*3/4=17,3x/4=17,3x=68,x=68/3=22.66
2/5*22.6=44.6/5
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