1 pair of canvas is $7, therefore
6 pairs of canvas will be $ 42. while
1 pair of leather shoe is $35, thus
3 pairs of leather shoes is $105
Hence the ratio of the cost of canvas shoes to that of leather shoe will be;
$42 : $105 (simplifying)
= 6 :15
= 2: 5; therefore the ratio is 2/15
