The total length of the 8 pieces of string is 69.4 inches
Total number of pieces = 8 pieces
Then 3 pieces of strings are 7.8 inches long
The total length of the 3 pieces of strings = 3 × 7.8
= 23.4 inches
The 5 pieces of strings are 9.2 inches long
The total length of the 5 pieces of strings = 5 × 9.2
= 46 inches
The total length = The total length of the 3 pieces of strings + The total length of the 5 pieces of strings
Substitute the values in the equation
The total length = 23.4 + 46
= 69.4 inches
Hence, the total length of the 8 pieces of string is 69.4 inches
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