The total length of 3 streamers and 3 threads is 270 cm. The length of a thread is
19 of the length of the streamer. What is the total length of the 3 threads?
| |
Streamers |
Threads |
Total |
| Number |
3 |
3 |
|
| Value |
9 u |
1 u |
|
| Total value |
27 u |
3 u |
30 u |
Length of 3 streamers and 3 threads
= 27 u + 3 u
= 30 u
30 u = 270
1 u = 270 ÷ 30 = 9
Total length of the 3 threads
= 3 u
= 3 x 9
= 27 cm
Answer(s): 27 cm
