String A is 1 yard shorter than string B. String C is 1 ft 8 inches shorter than string B.

The total length of the three strings are 13 ft 4 inches. What is the length of string A

Let the length of string A be x

it is 1 yard = 3 ft shorter than string B

so length of string B = x+3

String C is 1ft 8 inches shorter than B,

so C = x + 1ft 8 inch = x + 1 + 2/3 ft.

Total of A + B+C = 13ft 4inch = 13 + 1/3 ft.

x + x+3 + x+1+2/3 = 13 + 1/3

3x + 4 + 2/3 - 1/3 = 13

3x = 13 - 4 - 1/3

3x = 9 - 1/3

x = 3 - 1/9

x = 3ft - 12/9 inches = 3 ft - 4/3 inches

x = 2.889 ft