The total length of 5 wires and 4 strings is 396 cm. The length of a string is
18 of the length of the wire. What is the total length of the 4 strings?
|
Wires |
Strings |
Total |
Number |
5 |
4 |
|
Value |
8 u |
1 u |
|
Total value |
40 u |
4 u |
44 u |
Length of 5 wires and 4 strings
= 40 u + 4 u
= 44 u
44 u = 396
1 u = 396 ÷ 44 = 9
Total length of the 4 strings
= 4 u
= 4 x 9
= 36 cm
Answer(s): 36 cm