the profit obtained by selling an article for rs . 56 is the same as the loss obtained by selling it for rs . 42 . what is the cost price of the article ?
"s . p 1 - c . p = c . p – s . p 2 56 - c . p = c . p - 42 2 c . p = 56 + 42 ; c . p = 98 / 2 = 49 answer : c"
divide(add(56, 42), const_2)