40.
The Coordinator of an International Virtual Conference has planned six guest lectures on different areasโCryptography, Fluid Dynamics, Big Data Analysis, Wavelet Theory, Differential Equations and Linear Algebraโto be organised only one on each day from Monday to Sunday.
Wavelet Theory should be organised immediately after Differential Equations.
Big Data Analysis should be organised on Wednesday and should not be followed by Linear Algebra.
Fluid Dynamics should be organised on Friday and there should be a gap of two days between Cryptography and Linear Algebra.
One day there will be no lecture (Saturday is not that day), and just before that day Linear Algebra will be organised.
How many lectures are organised between Big Data Analysis and Wavelet Theory?