Question 1205965
t and s
table lamps and standing lamps


{{{system((3/5)t=30+(4/5)s,t+s=155)}}}


{{{system(3t=150+4s,t+s=155)}}}


{{{system(3t-4s=150,t+s=155)}}}


{{{system(3t-4s=150,3t+3s=465)}}}


subtract....

{{{7s=315}}}


{{{highlight_green(s=45)}}}
{{{highlight_green(t=110)}}}


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how many table lamps were left if 30% of them were removed from the warehouse?
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Question should not be troubling to solve.