just give the solid correct answer quick please

Problem 3 8.0 points possible (graded, results hidden] a. In Jamalpur District, 60% of children started primary school, 70% of the children who have completed primary school also admit in college. Finally, 20% of college students get a chance to be admitted into a graduate college. Find the total probability of children who have been deprived of higher study? b. Rehnu ma has a set of three special coins. For the first, second and third coin, probability of getting a head is 45%, 65% and 100% respectively. If one coin is tossed randomly and you get head, what is the probability of the coin being two headed