In a given absorption call transmittance of 0.i mol dm of a is 0.75 and that of 0.1 mol dm ofb is 0.55 at a given wavelength. calculate the transmittance ofa so

In a given absorption call transmittance of 0.I mol dm of A is 0.75 and that of 0.1 mol dm ofB IS 0.55 at a given wavelength. Calculate the transmittance ofa solution that is simultaneous 0.1 mol dm in A and 0.1 mol dm in B.