Hi,

I am having issues with this question:

Consecutive resonances occur at wavelengths of 8 m and 4.8 m in an organ pipe closed at one end. What is the length of the organ pipe? (Note: Resonances occur at L = nλ/ 4, where L is the pipe length, λ is the wavelength, and n = 1, 3, 5,…)

I understand that L = nλ/4 needs to be used but when looking at the answers the math confuses me and I become unsure of how to solve it

Answer: 6m

Any help is appreciated!