The total length of 7 ribbons and 7 strings is 294 cm. The length of a string is
12 of the length of the ribbon. What is the total length of the 7 strings?
|
Ribbons |
Strings |
Total |
Number |
7 |
7 |
|
Value |
2 u |
1 u |
|
Total value |
14 u |
7 u |
21 u |
Length of 7 ribbons and 7 strings
= 14 u + 7 u
= 21 u
21 u = 294
1 u = 294 ÷ 21 = 14
Total length of the 7 strings
= 7 u
= 7 x 14
= 98 cm
Answer(s): 98 cm