Question 256937
Before lunch, the kitchen had 11 cases plus 3 cans or {{{11*24+3}}} cans=267 cans.
After lunch, the kitchen had 6 cases or {{{6*24}}} cans= 144 cans.
They sold the difference.
{{{N=264-144=120}}}
They sold 120 cans of juice.
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OOPS! Sorry, the answer should be 
{{{N=267-144=123}}}
They sold 123 cans of juice.