The total length of 2 strings and 3 ropes is 371 cm. The length of a rope is
12 of the length of the string. What is the total length of the 3 ropes?
|
Strings |
Ropes |
Total |
Number |
2 |
3 |
|
Value |
2 u |
1 u |
|
Total value |
4 u |
3 u |
7 u |
Length of 2 strings and 3 ropes
= 4 u + 3 u
= 7 u
7 u = 371
1 u = 371 ÷ 7 = 53
Total length of the 3 ropes
= 3 u
= 3 x 53
= 159 cm
Answer(s): 159 cm