A fires 5 shots to B's 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 :
Select
A) 30 birds	B) 60 birds	C) 72 birds	D) 90 birds	E) 84 birds
Explanation:   Let the no of shots be x. Then,   Shots fired by 30 birds = 5/8x   Shots fired by B = 3/8x   Killing shots by 30 birds = 1/3 of 5/8x= 5/24x   shots missed by B =1/2 of 3/8x =3/16x   therefore, 3/16x=27=&gt; x=144   Birds killed by 30 birds = 5/24x=(5/24)x144=30   30 birdsNSWER IS 30 birds
<result>A</result>
A fires 5 shots to B's 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 :