The total length of 9 wires and 3 ribbons is 324 cm. The length of a ribbon is
35 of the length of the wire. What is the total length of the 3 ribbons?
|
Wires |
Ribbons |
Total |
Number |
9 |
3 |
|
Value |
5 u |
3 u |
|
Total value |
45 u |
9 u |
54 u |
Length of 9 wires and 3 ribbons
= 45 u + 9 u
= 54 u
54 u = 324
1 u = 324 ÷ 54 = 6
Total length of the 3 ribbons
= 9 u
= 9 x 6
= 54 cm
Answer(s): 54 cm