 
 <translate> If the duck takes 40 days to fly to the south during winter and twice as much time to fly to the north during summer, it takes 40 * 2 = 80 days to travel to the north. The total time it takes to travel to the south and the north during both seasons is 80 + 40 = 120 days. The duck also takes 60 days to travel to the East during spring, making the total time it travels during all the seasons to be 120 + 60 = 180. So, the answer is 180. <hau> Idan duck yana ɗaukar kwanaki 40 don ya tashi zuwa kudu a lokacin hunturu kuma sau biyu don ya tashi zuwa arewa a lokacin rani, yana ɗaukar kwanaki 40 * 2 = 80 don tafiya zuwa arewa. Jimlar lokacin da yake ɗauka don tafiya zuwa kudu da arewa a cikin duka lokutan shine kwanaki 80 + 40 = 120. Ƙari ga haka, yana ɗaukan kwanaki 60 kafin ya yi tafiya zuwa Gabas a lokacin bazara, hakan ya sa duka lokacin da ya yi tafiya a dukan yanayi ya zama 120 + 60 = 180. Amsar ita ce 180. 