The total length of 3 ribbons and 2 strings is 380 cm. The length of a string is
16 of the length of the ribbon. What is the total length of the 2 strings?
| |
Ribbons |
Strings |
Total |
| Number |
3 |
2 |
|
| Value |
6 u |
1 u |
|
| Total value |
18 u |
2 u |
20 u |
Length of 3 ribbons and 2 strings
= 18 u + 2 u
= 20 u
20 u = 380
1 u = 380 ÷ 20 = 19
Total length of the 2 strings
= 2 u
= 2 x 19
= 38 cm
Answer(s): 38 cm
