Let the shoe be=p
and the sock=q
2p+4q=109...first statement
3p+5q=160....second statement
..........
(2p+4q=109)3
(3p+5q=160)2
6p+12q=327
6p+10q=320
...................
-2q=-7
q=3.5
two pair of shoes and four pairs of sock cost 109,and three pairs of shoes and five pairs of socks cost 160 .Find the cost of pair of the sock
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