Task: Question Answering
Input (English): Problem: there are 5 boxes in a cargo. the weight of the 1 st box is 200 kg, the weight of the 2 nd box is 20 % higher than the third box, whose weight is 25 % higher than the 1 st box weight. the 4 th box which weighs 350 kg is 30 % lighter than the 5 th box. find the difference in average weight of the 4 heaviest boxes and the 4 lightest boxes.
Options: a. 22, b. 75, c. 25, d. 70, e. 11
Output (English): b