Problem: from a pack of cards , two cards are drawn one after the other , with replacement . what is the probability that the first card is a club and the second card is a red king ?
Rationale: p ( club ) = 1 / 4 p ( red king ) = 1 / 26 p ( club then a red king ) = 1 / 4 * 1 / 26 = 1 / 104 the answer is e .
annotated_formula: multiply(divide(add(multiply(const_3, const_4), const_1), const_52), divide(const_2, const_52))