In an examination, 50 % examinees got grade 'A' in Mathematics, 75 % got grade
'A' in Science and 35 students got grade 'A' in both the subjects. If none of the
examinees got other than grade 'A' in both the subjects,
(i) represent the given information in a Venn-diagram.
(ii) Find the number of examinees who got grade A in Science only.
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