Naughty and Xiaoxiao are on a straight road. They start from a and B which are 200 meters apart at the same time. Naughty walks 50 meters per minute, Xiaoxiao walks 40 meters per minute. How many meters are they apart in two minutes? Please consider the possible different situations from the location and direction of naughty and Xiaoxiao, and then fill in four different answers ① Two minutes later, they may be () meters apart. ② two minutes later, they may be () meters apart. ③ two minutes later, they may be () meters apart. ④ two minutes later, they may be () meters apart

Naughty and Xiaoxiao are on a straight road. They start from a and B which are 200 meters apart at the same time. Naughty walks 50 meters per minute, Xiaoxiao walks 40 meters per minute. How many meters are they apart in two minutes? Please consider the possible different situations from the location and direction of naughty and Xiaoxiao, and then fill in four different answers ① Two minutes later, they may be () meters apart. ② two minutes later, they may be () meters apart. ③ two minutes later, they may be () meters apart. ④ two minutes later, they may be () meters apart

1. If you walk in the opposite direction, the distance between them is 200 + (50 + 40) * 2 = 380.2; if you walk in the same direction, the distance between them is 50 * 2 + 200-40 * 2 = 220
3. If you walk in the same direction, smile in the front, naughty in the back, 40 * 2 + 200-50 * 2 = 180.4; if you walk in the opposite direction, the distance between the two is 200 - (50 + 40) * 2 = 180