Answer:
1. 45
2. 9
3. 11
4. 17
Explanation:
Given the following:
28 checked H
26 checked C
14 checked D
8 checked H and C
4 checked H and D
3 checked C and D
2 checked all.
Hence N(H) = 28
N(C) = 26
N(D) = 14
N(H U C) = 8
N(H U D) = 4
N(C U D) = 3
N(H U C U D) = 2
We also know that
Total = N(H) + N(C) + N(D) - N(H U C) - N(H U D) - N(C U D) + N(H U C U D)
Substituting the given values, we obtain
Total = 55
1. Students that didn't check any box = 100 - 55 = 45 students
2. Students who checked exactly two box
= N(H U C) + N(H U D) + N(C U D) - 3N(H U C U D) (from probability theorem)
Substituting the values, we have 8 + 4 + 3 - 6 = 9 students
3. Students who checked atleast two box =
The people who have checked all three are needed to be calculated once. Earlier, we subtracted them thrice so we add one time
N(H U C) + N(H U D) + N(C U D) - 2N(H U C U D) = 8 + 4 + 3 - 4 = 11 students
4. Given N(C) = 26
We subtract N(CUD) and N(HUC) as they have checked another apart from club.
26 -8 - 3 = 15
Now we could notice we have subtracted N(HUCUD) twice in both categories, so we add one time to neutralise
15 + 2 = 17
Hence N(only C) = 17 students.
Contains one or more letters
The number represents the row !:)
Answer:
Time
TARDIS
Gel electrophores
outile
here exterior and
side
ower Resembles even with more
common that there size what
Time
า (
esem
e they
end interior of
Meaning you are busy and focused at work
Answer:
oneMore(oneMore(oneMore(oneMore(oneMore(0)))))
Explanation:
- As a function has been explained which when given an integer results as a next integer. oneMore(given-integer)= next integer
- As we are restricted to use 0 only and can't use operators like + - * /.
- We have to obtain a value 5
- So doing step-by-step:
(oneMore(0))=1
(oneMore(oneMore(0)))=2
(oneMore(oneMore(oneMore(0))))=3
(oneMore(oneMore(oneMore(oneMore(0)))))=4
oneMore(oneMore(oneMore(oneMore(oneMore(0)))))=5
