Question 1064186
George purchased leeks,beet,carrot and radish for Rs.130  and 500g of each vegetable.cost of leeks and beet are same, cost of carrot is Rs.10 more than the cost of beet, cost of radish  is Rs.10 .less than the cost of carrot. what is the cost of 500g of leeks? 


<pre>
c    price of carrot per 500 gram
b    price of beet per 500 gram
L    price of leek per 500 gram
</pre>
Account for the purchase cost:   {{{c+b+L=130}}}


Other parts of the description:  {{{system(b=L,c=10+b)}}}


The description of the radishes played no part in the purchase described.


Solve the system and start with a simple substitution:
{{{system(c+b+L=130,b=L,c=b+10)}}}

Try to arrange to have just one equation in just the one unknown, L.