Task: Question Answering
Input (English): Problem: fresh grapes contain 80 % water by weight and raisins obtained by drying fresh grapes contain 25 % water by weight. how many kgs of fresh grapes are needed to get 40 kgs of raisins ?
Options: a. 150 kgs, b. 64 kgs, c. 72 kgs, d. 65 kgs, e. 70 kgs
Output (English): a