It is worded in a confusing sense but I think I understand it. Let represent the money she spend on sausages. Also is the money she spend on beef because she spilt the money equally. Since she can buy more sausages then beef (they are less expensive) the difference between them is 2 (because she gets 2 more kilos). Now place that into an equation. If she spends yen on sausages then she gets kilos because they are worth (3 yen per kilo). Similarily she gets kilos of beef. Thus, their difference is 2:Originally Posted by bonbhoy
To solve this you need to find the common denominator. Which is 12, and multiply both sides by 12:
Thus, she brought 24 kilos for both of them. Thus, a total of 48 kilograms of meat where brough.