What is the distance between the genes of body colour and eye colour on ‘X’ chromosome in Drosophila ?

When a cross was performed between a wild type male and mutant female of Drosophila w.r.t. eye colour and body colour, in the F₂ generation 1.3% recombinants were formed. We know that the distance between the genes is equal to the percentage recombinants. Therefore the distance between eye colour and body colour is 1.3 cM.