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A survey was carried out on 150 tourists to Wales asking

Berikut ini adalah pertanyaan dari missadelineisabel pada mata pelajaran Matematika untuk jenjang Sekolah Menengah Pertama

A survey was carried out on 150 touriststo Wales asking which of the following
attractions, if any, they had visited:
■ National Slate Museum
■ National Wool Museum
■ National Library of Wales
27 of the visitors had visited National
Slate Museum and National Wool
Museum and, of these, 8 had visited all
three attractions.
72 of the people had visited National
Library of Wales.
70 of the people had visited National
Slate Museum.
Some further information is given on the
Venn diagram below. How many visitors
had visited the National Library of Wales
only?

Tolong jawab ya, makasih
A survey was carried out on 150 tourists to Wales asking which of the following attractions, if any, they had visited: ■ National Slate Museum ■ National Wool Museum ■ National Library of Wales 27 of the visitors had visited National Slate Museum and National Wool Museum and, of these, 8 had visited all three attractions. 72 of the people had visited National Library of Wales. 70 of the people had visited National Slate Museum. Some further information is given on the Venn diagram below. How many visitors had visited the National Library of Wales only? Tolong jawab ya, makasih

Jawaban dan Penjelasan

Berikut ini adalah pilihan jawaban terbaik dari pertanyaan diatas.

Jawab:

Thirty four visitors had visited the National Library of Wales only.

Penjelasan dengan langkah-langkah:

The processes of analyze numbers of visitors that had visited the National Library of Wales only:

  1. Select the numbers of the National Library of Wales visitors.
  2. Calculate the numbers of the National Library only visitors by eliminating the visitors who didn't visit the National Library only.
  3. Get the conclusion.

1st Process

From Diagram Venn:

  • Visitors that had visited National State Museum and the National Library of Wales: x1 = 20 people
  • Visitors that had visited the National Wool Museum and the National Library of Wales: x2 = 10 people

From the text:

  • Visitors that had visited all three attractions: x3 = 8 people
  • Total visitors that had visited the National Library of Wales: xt = 72 people

2nd Process

Elements of total visitors of the National Library of Wales:

  • Visitors that had visited National State Museum and the National Library of Wales: x1
  • Visitors that had visited the National Wool Museum and the National Library of Wales: x2
  • Visitors that had visited all three attractions: x3
  • Visitors that had visited the National Library of Wales only: x4

So, xt = x1+x2+x3+x4

72 people =20 people + 10 people + 8 people + x4

x4 = 72 people - 38 people

x4 = 34 people

3rd Process

So, there were 34 visitors that had visited the National Library of Wales only.

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Last Update: Sun, 06 Aug 23
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