a sells a bicycle to b and makes a profit of 20 % . b sells the same bicycle to c at a profit of 25 % . if the final s . p . of the bicycle was rs . 225 , find out the cost price of the bicycle for a .
"explanation : answer : e"
divide(divide(225, divide(add(const_100, 25), const_100)), divide(add(20, const_100), const_100))