The total length of 5 ribbons and 7 ropes is 264 cm. The length of a rope is
13 of the length of the ribbon. What is the total length of the 7 ropes?
|
Ribbons |
Ropes |
Total |
Number |
5 |
7 |
|
Value |
3 u |
1 u |
|
Total value |
15 u |
7 u |
22 u |
Length of 5 ribbons and 7 ropes
= 15 u + 7 u
= 22 u
22 u = 264
1 u = 264 ÷ 22 = 12
Total length of the 7 ropes
= 7 u
= 7 x 12
= 84 cm
Answer(s): 84 cm