Question

if the cost of 4 shirts 4 pants 2cap is 560 dollars in a shop and the cost of 9shirts 9 paints and 6 caps is 1290 dollars then find the cost of shirts paints and caps

Answer 1

{4s+4p+2c=560
{9s+9p+6c=1290

{9s+9p+4.5c=1260
-
{9s+9p+6c=1290
1.5c=30
c=20 dollars

{4s+4p+40=560
{9s+9p+120=1290
{s+p=130

Shirt and pant cost 130 dollars for each (1170 dollars total for 9 pairs); cap cost 20 dollars each