Task: Question Answering
Input (English): Problem: gold is 10 times as heavy as water and copper is 6 times as heavy as water. in what ratio should these be mixed to get an alloy 8 times as heavy as water ?
Options: a. 3: 2, b. 1: 1, c. 3: 1, d. 5: 2, e. 4: 3
Output (English): b