Question
The average length of 10 pieces of streamer was 158 cm. When 5 pieces of streamers were used, the average length of the remaining pieces of streamers became 126 cm. What was the average length of the 5 pieces of streamers used?
4 m

Click button first when a symbol is required. X

The average length of 10 pieces of streamer was 158 cm. When 5 pieces of streamers were used, the average length of the remaining pieces of streamers became 126 cm. What was the average length of the 5 pieces of streamers used?