Of 21 typists in an office, 5 use all manual typewriters (M), electronic typewriters (E) and word processors (W); 9 use E and W; 7 use M and W; 6 use M and E; but no one uses M only. (i) Represent this information in a Venn Diagram. (ii) If the same number of typists use electronic as use word processors, then 1. (a) How many use word processors only, 2. (b) How many use electronic typewriters?
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Of 21 typists in an office, 5 use all manual typewriters (M),
electronic typewriters (E) and word processors (W); 9 use E and W; 7 use M and W;
6 use M and E; but no one uses M only.
(i) Represent this information in a Venn Diagram.
(ii) If the same number of typists use electronic as use word processors, then
1. (a) How many use word processors only,
2. (b) How many use electronic typewriters?
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