The total length of 3 streamers and 9 strings is 396 cm. The length of a string is
18 of the length of the streamer. What is the total length of the 9 strings?
|
Streamers |
Strings |
Total |
Number |
3 |
9 |
|
Value |
8 u |
1 u |
|
Total value |
24 u |
9 u |
33 u |
Length of 3 streamers and 9 strings
= 24 u + 9 u
= 33 u
33 u = 396
1 u = 396 ÷ 33 = 12
Total length of the 9 strings
= 9 u
= 9 x 12
= 108 cm
Answer(s): 108 cm