A fires 5 shots to Bs 3 but A kills only once in 3 shots while B kills once in 2 shots. When B has missed 27 times, A has killed
30 birds
60 birds
72 birds
90 birds
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In a class, 3/5 of the students are girls and rest are boys. If 2/9 of the girls and 1/4 of the boys are absent, what part of the total number of students is present ?