Page 151 - NUMINO Challenge_D2
P. 151
Answer
Key
2 Since there is a common part between tomato Type 6-2 Inclusion and Exclusion p.54~p.55
and pear, is always true.
1 Total: 40 students, Viking boat: 25 students,
3 The number of people who like both apples Merry-Go-Round: 20 students, Not riding: 5
and pears is equal to the number of people who students
like apples. But in the Venn diagram shown in ,
the number of people who like apples and the 2 40 5 35 students
number of people who like tomatoes cannot be
compared. 3 25 20 35 10 students
None of the people like apples and tomatoes.
Since there is at least one person who likes pears 4 25 10 15 students, 20 10 10 students
and tomatoes, you can say that the number of
people who like apples and tomatoes is not as 5 15 10 25 students
many as the number of people who like pears
and tomatoes. Problem solving
Problem solving 1 Total (200 people)
Older Sister Older Brother
1 Draw a Venn diagram to understand the (80 people) (140 people)
30
relationship among A, B, and C.
If it's C, then it's A, and if it's A, then it's B, 80 30 50 (people)
therefore if it's C, then it's B. 140 30 110 (people)
If it is not B, then it cannot be C. 200 ( 30 )
There are things that are B among the things 200 (50 30 110)
that are not C. 10 people
There are things that are B among the things
that are not A. 2 The area of the large tile is 10 8 80 cm2, and
2 The Venn diagram is as shown below. the area of the small tile is 5 7 35 cm2.
The area of the overlapped part is the area of a
Golf square with a side of 2 cm, which is 2 2 4
Hike cm2. Therefore, the area of the floor covered by
Run the two tiles is 80 35 4 111 cm2.
Baseball
Creative Thinking p.56~p.57
1 D is included in A and in B.
NUMINO Challenge D2
Key
2 Since there is a common part between tomato Type 6-2 Inclusion and Exclusion p.54~p.55
and pear, is always true.
1 Total: 40 students, Viking boat: 25 students,
3 The number of people who like both apples Merry-Go-Round: 20 students, Not riding: 5
and pears is equal to the number of people who students
like apples. But in the Venn diagram shown in ,
the number of people who like apples and the 2 40 5 35 students
number of people who like tomatoes cannot be
compared. 3 25 20 35 10 students
None of the people like apples and tomatoes.
Since there is at least one person who likes pears 4 25 10 15 students, 20 10 10 students
and tomatoes, you can say that the number of
people who like apples and tomatoes is not as 5 15 10 25 students
many as the number of people who like pears
and tomatoes. Problem solving
Problem solving 1 Total (200 people)
Older Sister Older Brother
1 Draw a Venn diagram to understand the (80 people) (140 people)
30
relationship among A, B, and C.
If it's C, then it's A, and if it's A, then it's B, 80 30 50 (people)
therefore if it's C, then it's B. 140 30 110 (people)
If it is not B, then it cannot be C. 200 ( 30 )
There are things that are B among the things 200 (50 30 110)
that are not C. 10 people
There are things that are B among the things
that are not A. 2 The area of the large tile is 10 8 80 cm2, and
2 The Venn diagram is as shown below. the area of the small tile is 5 7 35 cm2.
The area of the overlapped part is the area of a
Golf square with a side of 2 cm, which is 2 2 4
Hike cm2. Therefore, the area of the floor covered by
Run the two tiles is 80 35 4 111 cm2.
Baseball
Creative Thinking p.56~p.57
1 D is included in A and in B.
NUMINO Challenge D2
