A survey was carried out on 150 tourists to Wales asking which of the following museums, if any, they had visited: • St Fagans National History Museum • National Museum Cardiff • Big Pit National Coal Museum 27 of the visitors had visited St Fagans National History Museum and National Museum Cardiff and, of these, 8 had visited all the museums. 72 of the people had visited Big Pit National Coal Museum. 70 of the people had visited St Fagans National History Museum. Some further information is given on the Venn diagram below. How many visitors had visited National Museum Cardiff? St Fagans National History Big Pit National Coal Museum Museum 20 10 21 National Museum

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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A survey was carried out on 150 tourists to Wales asking which of the following museums, if any, they had visited:
• St Fagans National History Museum
• National Museum Cardiff
• Big Pit National Coal Museum
27 of the visitors had visited St Fagans National History Museum and National Museum Cardiff and, of these, 8 had visited all the
museums.
72 of the people had visited Big Pit National Coal Museum.
70 of the people had visited St Fagans National History Museum.
Some further information is given on the Venn diagram below. How many visitors had visited National Museum Cardiff?
St Fagans
National History National Coal
Museum
Big Pit
Museum
20
10
21
National Museum
Transcribed Image Text:A survey was carried out on 150 tourists to Wales asking which of the following museums, if any, they had visited: • St Fagans National History Museum • National Museum Cardiff • Big Pit National Coal Museum 27 of the visitors had visited St Fagans National History Museum and National Museum Cardiff and, of these, 8 had visited all the museums. 72 of the people had visited Big Pit National Coal Museum. 70 of the people had visited St Fagans National History Museum. Some further information is given on the Venn diagram below. How many visitors had visited National Museum Cardiff? St Fagans National History National Coal Museum Big Pit Museum 20 10 21 National Museum
National Museum
Cardiff
38
B
58
28
D
48
Transcribed Image Text:National Museum Cardiff 38 B 58 28 D 48
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