Question 1134859
recheck the problem description.


p pens
L penciLs


Account for the cost:
{{{2p+0.05L=13.5}}}


Account for relation between pens and pencils:
{{{2=p/L}}}


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Simple algebra between p and L,
{{{p=2L}}}


Substitute into the cost equation:
{{{2*2L+0.05L=13.5}}}
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{{{4L+0.05L=13.5}}}
{{{4.05L=13.5}}}
{{{L=13.5/4.05}}}

{{{L=3&1/3}}}, but this is not a whole number; and both L and p must be whole numbers.