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Module 1. Mathematics

In a flight control system, the control cable is allowed an elongation of 3% due to wear. The length from the manufacturer is 78cm, what is its maximum used length?

  • 2.34 cm
  • 78.34 cm
  • 80.34 cm

sidewinder asking:

Why isn't 80.34cm? I didn't understand it.

Community Comments (2)

M
mano Posts: 3 31.03.2024 / 17:32
78+(78*3/100) = 80.34 or
78+(78*0.03) = 80.34 or
78 * 103/100 = 80.34 or
78 * 1.03 =80.34
E
Eddz25 Posts: 7 28.05.2025 / 03:14
elongation is the process of lengthening something, thus the length of the cable is increased by 3%. therefore 3% of 78 is 2.34.
The new length is 78+2.34 = 80.34cm

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