seller selling an apple for rs . 17 , a seller loses 1 / 6 th of what it costs him . the cp of the apple is ?
"sp = 17 loss = cp 18 loss = cp − sp = cp − 17 ⇒ cp 18 = cp − 17 ⇒ 17 cp 18 = 17 ⇒ cp 18 = 1 ⇒ cp = 18 c"
add(17, 1)