Question 822181
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Hi,
Re Reply: another way of thinking about it is: 
Cost/Liter = $1.40/2.5L =  $0.56 per Liter  &  6 will cost: 6(.56) = $3.36
2.5 litres of coke costs 1.40 how much{{{highlight_green(x)}}} will 6 litres cost? 
 {{{2.5L/1.40 = 6L/x}}}    |Cross Multiplying to solve
      2.5x = 6(1.40)
         x = 6(1.40)/2.5
  x = $3.36