Task: Question Answering
Input (English): Problem: in township k, 1 / 5 of the housing units are equiped with cable tv. if 1 / 10 of the housing units, including 1 / 6 of those that are equiped with cable tv, are equipped with videocassette recorders, what fraction of the housing units have neither cable tv nor videocassette recorders ?
Options: a. 23 / 30, b. 11 / 15, c. 7 / 10, d. 1 / 6, e. 2 / 15
Output (English): b