A class of 40 students, 25 speak Hausa , Speak Igbo 21 speak yoruba and each of the students speak at least one of these hree languages I speak Hausa oud and Igbo 1 speek Hausa and Yoruba and 6 Speak Igna and Yoruba Draw a na diagram to illustrate this imam ven on using s to represent the no. of Studiants who speak all three a b 6 calculate the value of s